The simple pattern
ENERGY -- FORCE -- ENERGY -- FORCE -- ENERGY -- FORCE -- ENERGY.......
Start by reviewing the week 6 notes online (this is a mandatory part of the assignment).
Watch the large video (to the right) and find examples for the following six concepts. BE SPECIFIC and briefly explain why your examples demonstrate the concepts.Static Friction
Kinetic Friction
Work
Gravitational Potential Energy
Elastic Potential Energy
Kinetic Energy
Examples:
ReplyDelete1. An example of static friction is when the first guy in the video pushed the toy truck into the dominoes, which resulted in the dominoes falling.
2. An example of kinetic friction is when the spoons each hit the array of cups. This is an example because the spoons are continuously moving, while the cups are not,
3. An example of work is when one of the silver balls comes into contact with the other two motionless silver balls and as a result, it caused them to go in different directions.
4. There is gravitational potential energy in the video is when the golf club is cocked back, and thus had potential energy stored.
5. An example of elastic potential energy is (I think it was a tea kettle) or something was swinging on the rope. This is an example because no matter what, the rope has to swing back even with no forces acting upon it.
6. An example of kinetic energy in the video is the basketball rolling and eventually hitting the target. This is an example of kinetic energy because the ball is moving.
Static Friction- 2:45ish the ball moving along a metal surface is static friction as the metal surface is stationary and the ball is NOT. This is a particularly good example of static friction because one cannot observe the irregularities in the ball or the metal - they are both smooth, but friction happens nonetheless. If the metal were at a 0 degree incline and continued on for a longer distance, friction would eventually cause the ball to stop rolling.
ReplyDeleteKinetic Friction- 2:20ish the water flowing into plastic containers is an example of kinetic friction because the water and the plastic are rubbing against each other. This is not static friction because the plastic containers are NOT stationary - once full of water, they tip over and repeat the kinetic friction process in a lower water container.
Work- 2L39ish a sledge hammer pounds into a television playing OK Go's popular video for "Here We Go Again." Metaphorically this is a lot of fun because the band is smashing through their more popular old work and refusing to let it define them... but in a physics sense, WORK is occurring. The sledge hammer destroys the television with one strong blow over a short amount of distance rather than the sledge hammer being tossed from a further distance with less work to create several cracks in the screen and EVENTUALLY destroy the television. Work is being rapidly and forcefully completed over a short distance before friction can cause the sledge hammer to slow down. In class, Mr. Roman ran into Billy Wilson and Billy acted as a force to stop Mr. Roman. The tv stops the sledge hammer!
Gravitational Potential Energy- 0:09 when the red truck is positioned right before the domino chain, there is gravitational potential energy because without the red car in the vicinity, the domino were relatively stable and had a low potential energy - there were no nearby forces to act upon them and cause them to become destabilized. However, when the red car is right by the dominoes, their gravitation potential energy to be knocked over and fall to the ground dramatically increases.
Elastic Potential Energy- 3:03ish a container full of small, yellow balls is released. This is an example of elastic potential energy because the initial force of dropping the balls is an action, but the balls bounce up without a new action of force having to be applied. The bounciness of the balls is like the springiness of a mattress in this case.
Kinetic Energy- 2:51ish the band member who is knocked backwards through space possesses kinetic energy by virtue of being in motion. Kinetic energy is acceleration times mass. His mass doesn't change, but his acceleration increases as he flies backwards into a stack of boxes.
FOR WORK: 2:39ish
DeleteStatic Friction- An example of static friction is when the tire is sitting on the top of the wood ramp. Unless a sufficient force is exerted on the tire it will not slide down the wood ramp because static friction holds it place and thus resisting it from sliding.(1:03)
ReplyDeleteKinetic Friction-An example of kinetic friction is when the lego car is moving on the table because the tires of the car and the surface of the table rubbing against one another causing friction. This is considered kinetic friction because it is friction applied to a moving object.(1:17)
Work- An example of work is when the metal balls hit the other stationary metal balls because there is a transfer in energy. (0:27)
Gravitational Potential Energy- An example of Gravitational potential energy is when the tea pot is on the string. This is an example because gravitational potential energy is caused when energy stored in an object as the result of its vertical position or height. (1:13)
Elastic Potential Energy-An example of elastic potential energy is when the bands are used to release the wooden barel because elastic potential energy is energy stored in elastic materials as the result of their stretching or compressing.(3:00)
Kinetic Energy- An example of kinetic energy is when the bowling ball spins around the ramp and hits the target because kinetic energy of an object is the energy it possesses because of its motion. (3:08)
Static Friction: (1:28) An example of static friction occurs when the soccer ball starts moving along the two STATIONARY rails. Though the ball continues to move, the rails remain in place. While the distinction between the texture of the soccer ball and the rails is not as defined (since they are both fairly smooth) as the two fly lines from our warm-up, friction still happens since the soccer ball is "sliding along" the rails. However, if there were gaps or spikes in the rails, the ball would not move along so smoothly and would halt its movement.
ReplyDeleteKinetic Friction: (2:20) An example of kinetic friction occurs when the water is thrashing against the plastic containers. Differing from the rails in the previous example, these containers are NOT stationary and instead slant and overflow into another container below once more water (and weight) flows into them.
Work: (3:15) An example of work is when the sledgehammer hits the file cabinet, causing it to fall over. The first hammer in the row of five strongly hits the others, causing the last one to go a farther distance (and consequentially hit the file cabinet with a hard knock). As this work is efficiently done, the energy transfers back into the initial sledgehammer, causing it to hit the row again. Yet the last sledgehammer doesn't go nearly as far, since there is now less force applied and it cannot cover as great of a distance as before.
Gravitational Potential Energy: (1:34) An example of gravitational potential energy is when the (very heavy!) piano falls and hits the ground. Clearly, since the piano is such a heavy mass, it can cause a lot of damage when it falls (therefore, its destruction when it hits the ground). The pulley is holding the piano at a high height and is keeping it at bay until an outside force (the ball rolling and hitting the see-saw-like contraption) makes it fall. Ultimately, the piano has the potential to cause great damage since gravity wants it go down due to its heavy weight (and clearly pushes it to the ground once the rope/pulley is released); however, the potential energy contained decreases as the piano is set in motion and increases its kinetic energy.
Elastic Potential Energy: (3:26) As the balloons hit the ground, they automatically just pop back up into the air (since they're bouncy!). Though a force initially effected the dropping of the balloons, a new force is not applied to make the balloons "spring" back up-they're doing it on their own. Thus, they act as "springs" or the elastic bands in socks.
Kinetic Energy: (0:26) An example of kinetic energy begins when the first ball (it looks like a ball from a pinball machine!) hits the first two balls on the "maze table." Each individual ball has kinetic energy as it continues moving along the course. However, each decelerates (slows down/briefly jolts back) as it hits another ball and causes a change in its velocity.
Static Friction: at (0:26), the balls in the grooves of the wood structure have static friction because they are still and settled into the grooves, requiring a lot force in order to move them out of the grooves.
ReplyDeleteKinetic Friction: at (1:32), the soccer ball rolling along the poles has kinetic friction because kinetic friction is moving friction. The poles are slowing down the soccer ball more than they would in a frictionless world because of the contact of the soccer ball and the poles.
Work: In the first 10 seconds of the video, the man in the red suit is working as he applies force to the truck over a distance of the surface. He is working for as long as his hand is on the truck and he is applying force to it.
Gravitational Potential Energy: at (0:16), the truck at the top of the ramp has gravitational potential energy because the height of the ramp and gravity has the potential to move the truck downward with energy. The truck has not moved yet, that's why it has POTENTIAL energy.
Elastic Potential Energy: at (2:07), when the green ball/cup thing drops, it springs back up all on its own because of its elasticity mixed with its mass and height. Right before it springs up after hitting the ground, it contains the most potential energy because it has the potential to spring but it has not yet sprung yet.
Kinetic Energy: at (0:17), the truck moves down the ramp (using velocity or speed in a certain direction combined with its mass). This is kinetic energy because kinetic energy is moving energy.
Static Friction at 1:53, the balls that are rolling down the ramp with prongs sticking out it are stopped for a brief second every time they fall and seem as if they are disrupted from moving.
ReplyDeleteKinetic Friction at 1:04, the tire going down the wooden ramp is experiencing friction from the wooden ramp which keeps the tire from flying off by the ramp maintaining to slow down the tire.
Work at 3:32, the large rolling ball coming from about five feet away from the trigger button exerts force on the button that has the trigger for the paint blast.
Gravitational Potential Energy at 1:35 where the Piano which is being suspended by a rope is being pulled to the ground, from which it is "waiting" to be released from the rope and plummet to the ground.
Elastic Potential Energy at 2:32 from which the large metal ball is hitting the screens that are in front of the ball; these screens "fly" up because they have potential to be pulled back to their original state, from which the screens spring back to.
Kinetic Energy at 1:15, where a tiny truck moves toward a wall, which it goes at with an increasing velocity up until it hits the wall straight in front of it, but still there was a kinetic energy previous to this.
Static friction- An example of this would be when the red and white marble is rolling down the black ramp and onto the floor (0:22) In the beginning before the red ball is hit by the black ball the red ball is stationary and not moving even though it is on a stationary slanted surface. This exemplifies static friction because the ball has "settled" into the ramp until it is moved by the black ball.
ReplyDeleteKinetic friction- An example of this would be when the red ball is hit by the black ball and starts moving (0:22). The red ball is stationary and black ball is moving so when the force pushes the stationary ball the red ball starts rolling therefore exemplifying kinetic friction.
Work- An example of this would be when the tea kettle is being pulled by the string (1:15) The string is doing most of the work pulling the tea kettle over a certain amount of distance, and the string is using force to move the tea kettle.
Gravitational potential energy- An example of this would be when the yellow balloons are in the air (3:27) The balloons have the potential energy of falling because they are thrown up into the air. Moreover when the balloons are in the air they have no kinetic energy when they reach a certain point and then they are pushed down by gravity.
Elastic potential energy- An example of this would be when the catapult catapults the ball into the air (1:02) there was a force to pull the catapult backwards, however there was no force put in the catapult to push it forward, it had the potential/force to get flung forward throwing the ball.
Kinetic energy- An example of this would be when the dominos are falling (0:09) the dominos are hitting eachother and falling over. The kinetic energy would be the dominos moving and causing each domino to move by hitting eachother.
Static Friction- At 00:20 seconds as the red ball is stationary it resists gravity yet as it is acted upon by an outside force (the black ball) it begins to move.
ReplyDeleteKinetic Friction 1:15 the umbrella begins to move yet as the wind the force pushing it begins to have less of an impact due to the increased distance, the umbrella begins to slow down due to the lessened force allowing their to be more friction because the umbrella sinks into the surface of the floor easier due to the lessened velocity.
Work- Towards the very beginning as the man does work by pushing the red (State Farm) car he exerts force on the car thereby pushing it.
Gravitational Potential Energy 00:24 The marble on the bass is above the ground and therefore has the ability to fall so it has gravitational potential energy
Elastic Potential Energy- 3:25 The balloons push down as they become compressed they have the ability to spring back so they have elastic potential energy.
Kinetic Energy- 00:10 Towards the very beginning the car knocks down the dominos creating a chain reaction, the dominos falling and transferring energy is a clear example of kinetic energy.
An example of static friction is at (0:28)because the friction in between the wood and the marbles keeps tham from moving.
ReplyDeleteAn example of kinetic friction is at(0:40) when the golf put hits the ball because the are moving relative to each other.
An example of work is at (2:43) because the hammer cause the glass to shatter making energy transfer.
An example of potential gravitational energy is (1:47) because the chairs were at a slant and wanted to fall because of gravity.
An example of elastic potential energy is (0:56) because the coil wanted to come undone.
An example of kinetic energy is (2:29) when the bowling ball is moving.
Static Friction: An example of static friction occurs at around 2:30, when force is applied upon a large metal ball (you can actually see the reflection of a man in the ball) and it glides across a long, flat, and most importantly stationary metal surface. Since the surface is seemingly smooth, it is easy to see that once force is applied to the ball, the microscopic irregularities of the surfaces that are settled into each other at rest are overcome, and the ball moves easily. The ball travels, but the surface does not move at all. Obviously, if the surfaces were very rough, one would have to apply more force for the ball to move and even then, the ball would not glide as freely.
ReplyDeleteKinetic Friction: Kinetic friction occurs around 2:20, when water pours into plastic containers. The containers are not stationary, but move when the weight of the water is added to them, causing each to overflow and tip the water over into the container below. This is not an example of static friction because kinetic friction is moving, not stationary.
Work: Essentially, everything that occurs in this video is "work," but a good example of work occurs at around 2:50, when a tin can on a string flies into a small stack of buckets, that then fall and crash into a pyramid of buckets. Although the tin can is small, it gains momentum as it swings through the air over a good amount of distance, resulting in a forceful crash. When the tin can crashes into the buckets, a lot of force and energy is transferred into the buckets causing them to fall into the larger stack of buckets that fall as well. Thus, work=force x distance (a proportional equation) is successfully applied.
Gravitational Potential Energy: A good example of gravitational potential energy occurs around 2:35, when the swing holding the TV is released and it quickly swings through the air until it is stopped by a wooden structure (because it applies a force in the opposite direction causing the TV swing to stop moving forward). The fairly heavy TV held by the swing possesses a lot of potential energy, because gravity wants to pull it down. The only things keeping the TV from falling to the ground include the rope holding the swing and the swing itself. When the swing is released and it is able to swing, its potential energy decreases as its kinetic energy increases and eventually halts due to the wooden structure in the way. The TV itself will still possess gravitational potential energy until it actually falls off the swing onto the ground.
Elastic Potential Energy: An example of elastic potential energy occurs at around 3:00, when the bottom of the basket filled with orange bouncy balls opens and the balls are released onto the ground. The balls are comparable to the springs in a mattress: upon hitting the ground, they spring back up off the ground on their own—after the initial force that prompts the release of the balls, a new force does not need to be applied for them to spring back up.
Kinetic Energy: An example of kinetic energy occurs at around 3:14, when the burgundy bowling ball quickly slides off the metal ramp and quickly rolls on the ground until it hits a target. The ball has kinetic energy as it travels toward the target, but once it hits the target, the force of the target pushes it back in the opposite direction. Thus, the ball has kinetic energy when it is moving freely, before the force of the target is applied and change occurs.
Static Friction- The beginning when the car hits the dominoes; the dominoes are stationary until the force of the truck is applied to them.
ReplyDeleteKinetic Friction- The metal marbles rolling through the wood carved course; the metals all are moving therefore have kinetic energy and when the balls hit eachother the kinetic energy works against eachother.
Work- the catapult; the miniature catapult is doing work when the forc of the ball hitting a switch and it catapults the ball a certain distance.
Gravitational Potential Energy- when the tire is at the top of the ramp it has gravitational potential energy because gravity will be pulling it down the ramp.
Elastic Potential Energy- the orange balls released from the basket, the balls bounce back up with out an input force.
Kinetic energy- The golf club swinging into another devic; because the moving of the golf club creates energy into the other device putting in a certain amount of work.
-On second 9, the guy in red actually pushed the car too hard that it knocked a couple of domino pieces over. The domino pieces were stationary until the outside force of the car was applied to the pieces they fell. What happened there was static friction.
ReplyDelete-On minute 3:04 a barrel was rolling and it made contact with a "speed-bump" block of wood and it just rolled over it. It had plenty of velocity and it just went over it. If it had been going slower it could have been stopped by the wood block. This proved that kinetic friction occurred.
-An example of work is shown in minute 3:07 when the boxing glove pushes the bowling ball as it passes on its energy making the ball go forward and building up speed through the ramp tails downward.
-During minute 1:33 gravitational potential energy is shown because the piano is suspended in mid air by a rope and because there is no motion about the piano and it is hanging in a vertical way. The piano is still and it also will fall as a result of the soccer ball pushing the lever. When it falls, energy is released from the piano to the ground and since the earth gives out energy from its center to stabilize the things that are being pushed by gravity as a reaction the piano still smashes but does not go through the earth, it stabilizes, bounces up and falls again ruined and destroyed.
-During minute 3:24 there is a net that contains yellow balloons inside it, the balloons are contained with energy. When the net opens the balloons are released, this releases the energy that was once packed inside the net. This is an example of elastic potential energy.
-During minute 3:07, there is a car that is moving. Since the car is on a ramp, its speed increases as it goes down. This is an example of kinetic enegy.
1: An example of static friction is when: the dominoes were sitting on the table not moving because the friction of the dominoes on the table keeps it stationary.
ReplyDelete2: An example of kinetic friction is when: the truck was rolling on the table because it is friction between the wheels and the table and it is moving.
3:An example of work is when: one of the silver colored balls comes into contact with the others because the energy is being transfered through the middle ones and hitting the last one.
4: An example of gravitational potential energy is when: the pool ball was sitting up on the wooden thing and if it were not on the wood thing it would fall.
5: An example of elastic potential energy is when: the golf club was wound up and spun, because it has kind of a spring like energy charged.
6: An example of kinetic energy in the video is when: the silver balls were rolling down the wooden plank because it was in the act of moving.
1. Work: The person moving the truck is working by exerting a force to move the truck over a distance.
ReplyDelete2. Gravitation potential energy: The domino at the top of the bucket contains gravitational potential energy before it falls because it had has height on the top of the bucket, the force of gravity pushing down on it, and a mass.
3&4. Kinetic Friction and Static Kinetic friction: The motion of the balls (that are traveling in the grooves of the wooden plank) transforms from Kinetic friction, where the microscopic irregularities are sliding over each other, to static kinetic friction, where the grooves settled into each other making it more difficult to move.
5. Elastic potential energy: The golf club that is released by the force of the ball had elastic potential energy. Much like a spring, the golf club was not worked on by a force to make it move. Rather, the golf club (being attached to a rubber band) was being suppressed into the position it was in before the ball released it.
6. Kinetic energy: The rolling tire has kinetic energy as it rolls down the ramp because it has both mass and velocity.
Static energy: the soccer ball rolling down the metal bars because it was stationery at the top of the slope until an outside force came and made it move.
ReplyDeletekinetic friction: the red kickball between two metal rods because the rods are slightly squeezing the ball creating a resistance.
Work: each of the dominoes is working on the one in front of it applying a force to knock it down.
Gravitational potential energy: the shopping cart at the top of the wooden slide has gpe because the slightest amount of force could send it down the slide and to the ground.
Elastic potential energy: when the ball attached to the string and wrapped around the pole is released because the energy is released causing the ball to unravel.
Kinetic energy: when the marbles are traveling down the grooves in the wood because the slope of the wood causes them to be in constant motion until they get trapped in the holes in the wood.
Static Friction: The guy in red pushes the red car into the dominos. The red car exerts a force on the stationary dominos.
ReplyDeleteKinetic friction: An example of kinetic friction is the umbrella that is being pushes by the fan. The umbrella is being pushes, however, the umbrella's contact with the ground causes it to slow down.
Kinetic energy: The red pool ball has kinetic energy until it hits the record. When the pool ball hits the record it moves backwards.
Elastic potential energy: The ping pong balls have elastic potential energy since like a spring they will bounce back.
Work: The person who starts the entire Rube Goldberg machine pushes the red car into the dominos. He is exerting the initial force.
Gravitational Potential Energy: An example of gravitational potential energy is when the yellow balloons fall. The balloons do not have helium and are held up by a net. When the net is removed, gravity will pull the balloons to the ground.
Static Friction: (0:28) When the small metal balls are stationed in the carved wooden path on the surface, they are stationary, therefore the particles of the wood and of the balls have "settled". Therefore, in order to move them, a force needs to be applied, which another metal ball does.
ReplyDeleteKinetic Friction: (2:33) When the metal ball is moving along the 2 rails, it is exemplifying kinetic friction because the grooves of both the ball and the rails are rubbing against each other allowing the ball to move.
Work: (0:07) The man in red pushing the toy truck along the surface is an example of work because work is force times distance, and since the man is applying a force along a distance, it is an example of work.
Gravitational Potential Energy: (1:34) The piano falling down is an example of gravitational potential energy because the piano has the potential to fall down (which it does) because of its height. The amount of potential energy is increased because of its heavy mass.
Elastic Potential Energy: (3:25) The balloons demonstrate elastic potential energy because once the force is applied to bring them to the ground, they are naturally brought back up. Since there is no input of force to bring them back up, they exemplify elastic potential energy.
Kinetic Energy: (2:58) The ball moving down the 2 rails is an example of kinetic energy because the ball is moving. Kinetic energy is made of mass and velocity, and the ball is moving in a certain direction until a force stops it, but until that point, the ball possesses kinetic energy because it was moving.
Static Friction: The tire at the top of the platform has static friction because it is stationary until acted on my an outside force.
ReplyDeleteKinetic Friction: The toy truck in the beginning has kinteic friction because the wheels are causing friction with the surface they are rolling on as they are being pushed by the force created by the man.
Work: The pool ball hitting what seems to be an old record case is work because the ball applies force to the square case causing it to fall over.
Gravitational potential energy: The piano falling is gravtiational kinetic energy because once the support holding up the piano is gone gravity immediately pulls down the massive piano.
Elastic potential energy: The golf club has elastic potential energy because no outside force causes it to move. The club is placed in a position where it creates its own force to swing.
Kinetic Energy: The marbles rolling in the wood tracks have kinetic energy because they are constantly in motion until they drop into the holes in the wood.
Static Friction: At the beginning of the video, the man covered in red paint shoves the toy car into the line of dominos, thus the car applies a force on the stationary dominos to make them move.
ReplyDeleteKinetic Friction: Whist the the black tire was rolling down the wooden ramp, the tire was experiencing friction omitted from the wooden ramp.
Kinetic Energy: The hammer smashing into the tele is an example of kinetic energy as it was in constant motion until the point where the tele prevented it from continuing.
Elastic Potential Energy: The oranges being released from the basket and falling to the ground is an example of elastic potential energy as the oranges generated their own springiness whilst bouncing on the floor.
Gravitational Potential Energy: The blue oil crate of some sort was suspended by a rope and as soon as that rope was cut, the crate came crashing to the floor. Without the rope, gravity caused the crate to plummet to the floor.
Work: The immobile plastic jugs did not move until water was poured into them and thus the water created a force which made them move down.
Static friction: In the beginning of the clip we see stationary dominos. There is no outside force acting upon it. Only the table keeps it from being still because of friction.
ReplyDeleteKinetic Friction: When the contraption is moving, we see marbles moving along a piece of wood. Since the balls are in motion they are showing kinetic friction by using friction in order to move.
Work:In the beginning, the man does work by pushing the truck and creating force. Thus, he is working and adding a force to make the truck move.
Gravitational Potential Energy: When the piano is falling, it shows gravitational potential energy because of the amount of energy it shows when it falls.
Elastic Potential Energy: When we see the use of bands on the wood. It shows how a springy/coiled band can be used to exert energy on the wood.
Kinetic Energy: All of the balls in the video are examples of kinetic energy. All of the balls already have energy by being in motion and are using it to role.
Static friction: In the beginning of the video, all the dominoes are stationary waiting for a force to act upon them.
ReplyDeleteKinetic friction: When the pool ball rolls down the ramp and knocks down the record to then activate another part of the contraption.
Work: When the man in the beginning pushes the truck into the dominoes thus activating the entire machine.
Gravitational Potential Energy: When the piano falls it's carried down by gravity.
Elastic Potential Energy: In the video around 0:55-0:57, we see the use of rubber bands on the ramp which leads to the release of the rubber bands causing the turnstile to turn.
Kinectic Energy: Every moving object in the video is an example of kinectic energy because it's all in motion.
For static friction the little red car at the beginning of the video was stationary until the man pushed it. Kinetic Friction when all the dominos are falling over one another, it's kinetic because friction is acting upon them when they're in motion. An example of work was when the red launch thing has to use a certain amount of force to shoot the tennis ball so that it would tip over the bucket. An example for gravitational potential energy was the tire because once the tire was release, gravity was already working on it making it go down the ramp. An example for elastic potential was around 1:17 when the little straw thing flung back to make the marble shoot across. It flung back in order to go back to it's inertial state. Kinetic energy would be when the guy is shot across the box pile because he is in motion!
ReplyDeleteStatic Friction- The dominoes are still (stationary) until the car runs into them.
ReplyDeleteKinetic Friction- An example of kinetic friction is when the little silver balls are rolling along the wooden plank.
Work-The man in the beginning of the video pushes the car into the dominoes which is an example of him doing work because he is exhorting force resulting in distance.
Gravitational Potential Energy- A yellow bucket falls off of a shelf in the begging of the video around 1:00 which is an example of gravitational potential energy because gravity pulls the bucket downwards after it's left the shelf.
Elastic Potential Energy- The tennis ball that is sprung up to knock the yellow bucket down as elastic potential energy because it is sprung towards the yellow bucket and then it bounces back.
Kinetic Energy- the bowling ball moving is an example of kinetic energy because its moving.
Static Friction: the dominoes sitting on the table not moving where stationary, exerting a force on the table as well as the table exerting a force on it.
ReplyDeleteKinetic Friction: the bowling ball running down and around the rack is an example of kinetic friction because the ball is moving throughout the rack.
Work: the man pushes the car because he is getting something done.
Gravitational potential energy: when the blue bucket is being held up by ropes, it has potential gravitation energy because it wants to fall to the ground, but the ropes are keeping it up. Once the ropes are cut, the bucket falls straight to the ground
Elastic Potential: the rubber bands hold the wood and also create the elastic potential energy. when the rubber bands are stretched out, they have the potential to spring right back.
Kinetic: every action you see taking place in the movie is Kinetic Energy. as long as there is movement between two surfaces, there is kinetic energy.
Static friction: the dominoes at the beginning of the video are an example of this because they were stationary until acted upon by an outside force.
ReplyDeletekinetic friction: the water flowing through the tubes then into the bottles is kinetic because it is constant motion.
work: an example of this would be at the very end when the paint balls are shot at the band but their bodies stop the forward acceleration of the paint balls. their body masses exert force to prevent the balls from going any father.
gravitational potential energy: the piano hanging from rope has potential energy because it is not going anywhere yet but if acted upon by an outside force (like cutting the rope) the fore of gravity would pull it down, especially since the piano has such a large mass.
elastic potential energy: around 1:05 the big cylinder thingy hits the red cone which releases the mouse trap is an example of electric potential energy. the mouse trap is held open by the bending of wire and once released it springs back into it's original state which realizes the ball into the air. So the state in which the mouse trap is pulled back is the potential energy.
kinetic energy: the row of dominoes falling down (one of my favorite things to watch) is an example of kinetic energy simply because they are all moving and are not stopped until acted upon by an outside force.
Static Friction: An example of static friction are the dominoes at the beginning of the video. The dominoes were at rest and therefore applied a force to the table and the table applied a force to the dominoes.
ReplyDeleteKinetic Friction: As the marbles were moving across a piece of wood, they used kinetic energy in order to move.
Work: We see an example of work when a silver marble hits another marble, which causes it to move.
Gravitational Potential Energy: An example of gravitational potential energy is when the yellow bucket falls off the shelf because once it falls, gravity continues of pull in towards the ground.
Elastic Potential Energy: The swinging golf club is a great example of elastic potential energy because it does not need an outside force to keep it moving.
Kinetic Energy: Most objects in the video have kinetic energy because they are in motion.
Static Friction: the dominoes sitting on the table not moving where stationary, exerting a force on the table as well as the table exerting a force on it.
ReplyDeleteKinetic Friction occurs whenm the umbrella begins to move yet as the wind the force pushing it begins to have less of an impact due to the increased distance, the umbrella begins to slow down because the lessened force allows their to be more friction.
Work- An example of work is at 27 seconds when the metal balls hit the other stationary metal balls because there is a transfer in energy.
Gravitational Potential Energy: An example of this energy is when the piano is falling, it shows gravitational potential energy because of the amount of energy it shows when it falls.
Elastic Potential Energy- An example of this energy is when the tennis ball gets thrown into the air and knocks the bucket down as elastic potential energy because it is sprung towards the bucket and then it bounces back.
Kinetic Energy: Although most objects and reactions in this video have kinetic energy a prime example is when the row of dominoes falling down,simply because they are all moving and are not stopped until acted upon by an outside force.
Static Friction: An example of Static friction would be the dominos in the beginning of the video are stationary until the red toy car hits them which causes static friction.
ReplyDeleteKinetic Friction: An example of kinetic friction is when the water is being poorer into the plastic container because the
Work: Almost everything in this video is "doing work" but an example of it would be the man in the beginning of the video pushing the red car into the dominos then when he lets go of the toy car.
Gravitational Potential Energy: An example of gravitational potential energy would the the shopping cart at the top of the slide because even the smallest amount of work/force would make it roll down the slide because of how close it was to the edge and the slant of it.
Elastic Potential Energy: Honestly just HAD to choose this one since we both play tennis!! but when the tennis class launches into the air and pushes down a bucket is elastic potential energy because the tennis ball falls towards the bucket then bounces back up!!
Kinetic Energy: An example of kinetic energy is when the small metal marbles were going down the wooden ramp into the holes, this is kinetic energy because they were in motion until they went into the holes.
Static Friction: the dominoes and the table applying equal force to each other while the dominoes were at rest
ReplyDeleteKinetic Friction: the metal balls rolling along the wooden plank filling up the holes creating a bridge for the other balls to keep rolling
Gravitational Potential Energy: the hammer dropping to smash the TV
Elastic Potential Energy: the tennis ball hitting the bucket and bouncing back
Kinetic Energy:the tire rolling down the ramp
Static Friction- The Red truck in the beginning of the video was stationary until the man applied force to it
ReplyDeleteKinetic Friction- Again, the Red truck after the man applied force to the truck, the truck was moving with more velocity and less friction
Work- An example of work is when the marble hits the other marbles, for a few instances, the marble was applying force over a distance to the other marble
Gravitational Potential Energy- The piano which hit the floor had Gravitational Potential Energy, since there was a distance between it and a mass which could apply equal force against it, and gravity was the force which COULD pull it towards the "mass"(floor), if something like cutting the rope, or letting go of the rope happened.
Elastic Potential Energy-Later in the video, there are balloons which bounce up, because they want to return to their inertial state.
Kinetic Energy-Again, early in the video, the Red truck is moving, it is moving because someone applied force to it; therefore, it has moving energy and moving energy is kinetic energy
Static Friction
ReplyDeleteThe energy keeping the dominoes in place before they are toppled down is Static Friction. The bottoms of dominoes use static friction to stay straight against gravity before they are toppled down.
Kinetic Friction
The little metal balls hitting each other in the carvings of the wood transfer energy to each other through kinetic friction. The first ball hits the other two balls, distributing its force between the two new ones. The metal balls absorb this energy and use it to gain a leading edge over the static friction holding them in place. Then the metal balls roll faster as gravity takes over.
Work
The fan pushing the umbrella is a good example of work, because the fan deploys a constant force of wind, which the umbrella catches and converts to kinetic friction, moving along its path. Due to the distance the umbrella covers with that amount of force used per second, the fan is deploying more work than if it just shot one gust of air at the umbrella, which wouldn’t move the umbrella as much as it did.
Gravitational Potential Energy
The giant piano held up by the string has a massive amount of gravitational potential energy, because it has a very large mass and its height. This means that the forces of gravity “wanted” to pull it down a lot more than it would have a feather, however the string combats this force and keeps it levitated. When the support of the piano is removed, gravity triumphs and pulls it down to the earth crashing keys and snapping strings in a flurry that evokes a cartoonish aura.
Elastic Potential Energy
The rope holding the man splattered in blue paint next to the bowling ball is stretched far enough that it is very prepared to return to its natural length, because it has lot of elastic potential energy. When the support is cut, the rope, attempting to return to normal, slings the man backward, creating kinetic motion, and then rebounds back, less so than the first time, and continues this until it settles to a hang.
Kinetic Energy
Although I have already mentioned this energy a few times before, I will use the paint being shot at the men, as an example of kinetic energy. As the blast of paint erupts in the cannon, the projectile of paint balances with hang time to aim at the men and color them even more. This allows it to fight the forces of gravity and air resistance (a form of kinetic friction).
Static Friction - The dominoes at the beginning of the video are an example of static friction. The dominoes are not moving and remain upright, however once triggered by another force (the car) they fall down. While they remain stationary however they demonstrate static friction.
ReplyDeleteKinetic Friction - The big tire rolling down ramp exemplifies kinetic friction. While rolling down friction is slowly slowing the tire down, however since it is still moving there is kinetic energy therefore kinetic friction.
Work - There is work throughout the entire video, however a specific example would be when the marbles hit each other transferring energy causing the marble it hit to move.
Gravitational Potential Energy - The piano held by the string is an example of gravitational potential energy. Being held up by the strong is what gives it the potential, however when the string is removed gravity takes over and the piano comes crashing down releasing its gravitational potential energy.
Elastic Potential Energy - When the basketball enters the hoop, all of the little ping pong balls that come falling down have elastic potential energy when they hit the ground and then bounce back up from the force they exert on the ground.
Kinetic Energy - Almost every object has kinetic energy, but specifically when the tire is rolling down the ramp that shows the best example of kinetic energy.