The simple pattern
ENERGY -- FORCE -- ENERGY -- FORCE -- ENERGY -- FORCE -- ENERGY.......
Start by reviewing the week 6 & 7 notes on our Buckley class page (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
Static Friction-the tea kettle, which was precariously balanced on the "ok go" statue, was kept up by its friction with the sign. it's mu was high.
ReplyDeleteKinetic Friction-when any of the things are moving over a surface, they are causing kinetic friction because they are moving while touching another surface
Work-when the bowling ball was sliding down the helix, gravity was applying force on the ball over a distance, AKA work
gravitational potential energy and kinetic energy- the ping pong balls had gravitational potential energy when they were being held up above the ground. We know for sure that they had GPE because when they fell, that energy was converted into kinetic energy (i.e. they started moving).
Elastic PE- before the mouse trap fired the tennis ball, it had elastic PE because it could (and did) eventually have kinetic energy.
Static Friction- When the white metal ball hit a switch, the shopping cart went down the ramp and flew forward. The shopping cart flew forward so suddenly because the static friction of the wood blocks was preventing the shopping cart from moving forward
ReplyDeleteKinetic Friction- When the bowling ball gained energy from the windy ,circular spring and accelerated down the ground to the target, the bowling ball and the ground had kinetic friction because they were both moving relative to each other.
Work- The initial push of the red car to the dominos was evident work because the red man (lol) exerted a lot of his force upon the car in a short distance. This work is directly proportional to an object with little force added over a greater distance, like the slow bowling balls.
Gravitational Potential Energy- The blue paint can was initially on top of a small, round surface, which mean there is no potential energy. But when the metal rung fell down on the green and black cloth, the paint can fell and decreased its potential energy because of its new height.
Elastic Potential Energy- When the black circular cylinder rolled across to the orange cone, the catapult jerked forward and the tennis ball flew across the room. Its elastic potential energy was released when the catapult was propelled suddenly.
Kinetic Energy- When the one tiny metal ball pushed 2 other metal balls (and created a domino effect with many metal balls) all of the object's kinetic energy increased because their velocity increased... which means that their kinetic energy had to increased to make it a proportional relationship.
Static Friction- The tire is held in place at the top of the ramp from a plank at the back of the ramp. The ridges of the tire are being held in place by the end of the plank.
ReplyDeleteKinetic Friction-The globe rolls down the two metal bars until the bars get too far apart and the globe falls. This is kinetic friction because the globe is moving along the metal bars.
Work- The guy at the beginning uses work to push the toy car into the dominos. He uses force from his hand to move the car a certain distance.
Gravitational Potential Energy- The piano is lifted off the ground and because of it's heavy mass it has very high potential energy even though it isn't far off the ground.
Elastic Potential Energy- One of the singer's bungie cord is being stretched really far. You observe this elastic potential energy when the bungie cord is unfastened and he is flung backwards into the boxes.
Kinetic Energy- The Hammer has kinetic energy as it swings down into the tv breaking the screen.
Static Friction - The car in the first scene has static friction when it is at a standstill before the guy picks it up and pushes it.
ReplyDeleteKinetic Friction - The red ball experiences kinetic friction when it is stopped at the end of ramp by two metal bars. The bars stop its motion.
Work - When the first guy pushes the car that hits the dominos, his arm is doing work by pushing the car and the car is doing work by hitting the dominos. Both use force and distance, thus both actions are work.
Gravitational Potential Energy - When the statue is raised and suspended in mid air, it has gravitational potential energy. It has the potential to fall and create kinetic energy.
Elastic Potential Energy - The elastic band that the man who is pushed backward is wearing is an example of elastic potential energy. It is tight as it holds him up but when it is released, the elastic expands and pushes him backwards.
Kinetic Energy - The guitar moving in a circular motion hitting the cups with the spoons has kinetic energy as it is motion.
Static Friction - At the beginning, the State Farm car, when not moving, had static friction because there was no "outside force" acting upon it to alter its stationary state.
ReplyDeleteKinetic Friction - When the metal balls are rolling over each other they have kinetic friction because, due to their velocity, they are able to roll over each other even though there is still a kinetic friction acting upon it.
Work - The bucket applied force over a very small distance to have done enough work to allow the tire to move down the hill.
Gravitation Potential Energy - When the piano is in the air and there is nothing to protect it when it falls except for the ground, it has gravitational potential energy. Because of the relatively extreme mass of the piano, the gravitational potential energy is extremely high,
Elastic Potential Energy - When the catapult was given a force to move it forward and launch, it shows that it had elastic potential energy because of the movement from moving backward to forward.
Kinetic Energy - The car at the end has kinetic energy when it is pushed down the platform.
Static Friction- At the beginning the toy car is stationary until Rube applies force to it.
ReplyDeleteKinetic Friction- When the cord was released the lego car was dragged along the table.
Work- When Rube pushed the car forward to knock over the dominos and start the reaction.
Gravitational Potential Energy- The Piano that was hanging in midair and proceeded to fall once let looose.
Elastic Potential Energy- As the camera is passing along one of the singer's is noticeably attached to a bungee cord harness and is then shot backwards into a wall of boxes.
Kinetic Energy- The basketball rolling down the spinning ramp is generating kinetic energy.
Static Friction- In the beginning, the red car had static friction because no "outside force" was acting upon it changing its current state, stationary.
ReplyDeleteKinetic Friction- When the green marble is rolling down the ramp it is causing kinetic friction because the the green marble is moving while touching the ramp.
Work- The man in the beginning of the video does work on the toy car. He uses force on the car causing him to use energy to push the car, then the energy is trasfered into the car making it move forward.
Gravitational Potential Energy- The piano that is lifted above the ground is a good example of Gravitational Potential Energy. Because the piano has a large mass it has a very high P.E. ;although, it is not very high off the ground.
Elastic Potential Energy- The mouse trap used to lauch the tennis ball at the bucket is an example of E.P.E. The mouse trap has E.P.E because it showed the ability to have K.E. , which it did. Also the coil uncoiling and snapping back caused the trap to react launching the tennis ball.
Kinetic Energy- The hammer used to break the screen showing a famous OK GO music video exerts K.E.
Static Friction - when the car is at a stand still it had static friction, staying in place until an outside force was applied
ReplyDeleteKinetic Friction - when the balls roll down the slope, there is a lot of kinetic friction because there are a lot of bumps on the slope, slowing the downward motion of the balls
Work - when the guy pushed the car, he applied force to the car, giving it motion and acceleration before it hit the dominos
Gravitational Potential Energy - when the tin can is hanging from a string it has gravitational potential energy, because it has the potential to fall, letting gravity take over and dropping it
Elastic Potential Energy - when the man is pulled back with the bungee cords, he has elastic potential energy, the bands stretched out waiting to contract
Kinetic Energy - the metal ball had kinetic energy as it was rolling from obstacle to obstacle
Static Friction: the white(ish) ball that looks like a soccer ball being held in postion by the two parallel bars
ReplyDeleteKinetic Friction: when the ball I just mentioned is moving along those bars, as the friction is occurring while the ball is in motion
Work: The first evidence of work would have to be when the guy with the red paint used force to push the toy car over a very short distance, as work is equally proportional to force and distance.
Gravitational Potential Energy: The little ball being shot out of the ipod speaker at the beginning has potential energy (with relation to gravity) because it is lifted above the ground.
Elastic Potential Energy: By far the best example of elastic PE is when the guy was flung back by the elastic cord being detached flinging him into boxes.
Kinetic Energy: The very first ball (the one that appears to be a red striped billiards ball) has kinetic energy when it is moving down the slope and then on level ground onto the next contraption.
Static Friction: just before the tire is hit, it has static friction because the two sides of the slide are holding the tire in place, keeping it at rest.
ReplyDeleteKinetic Friction: when the tire is rolling down the slide, it has kinetic friction because the the movement of the tire against the two sides of the slide creates friction.
Work: when the umbrella is moved by the fan, work is happening because the force from the fan pushes the umbrella a certain amount of distance.
Gravitational Potential Energy: when the red ball is at the top of the swirly slide towards the end of the video, there is gravitational potential energy because the ball has the potential to start moving down the slide.
Elastic Potential Energy: when the car hits the fence that is attached to a rope which triggers the guitar to spin, the elasticity of the rope had the potential to then trigger the other bar to spin the guitar.
Kinetic Energy: at the beginning of the video when the marble was rolling down the wooden slide, there was kinetic energy because there was motion involved.
static friction: The tire at rest on the wooden ramp is held still with another wooden plank. The grooves on the tire's surface gripping on to the surface of the wood plank hold them together in place.
ReplyDeletekinetic friction: The soccer ball rolling down on two metal polls. There is friction between the ball's surface an the polls while it is rolling forwards.
work: When the guy at the beginning pushes the red car forward before it hits the dominoes. He is applying work to the car (which is force times distance).
gravitational potential energy: The piano hanging up by a rope in the air falls (it has gravitational potential energy) right when it is cut loose because of gravity and the mass of the piano.
elastic potential energy: The bungee cord/rubber band rope thing that pulls one of the band members flying across the room. The release of the tight cord was enough force to pull him pack.
kinetic energy: The car that rolls down the ramp moves forward because it was pushed. Rolling forward, the car has kinetic energy
Static Friction: The toy car in the beginning had static friction because no force was acting on it until the guy pushed it.
ReplyDeleteKinetic Friction: The ball moving down the ramp towards the beginning has kinetic friction acting on it.
Work: The first guy using force to push the toy car is an example of work.
Gravitational Potential Energy: The piano suspended in the air shows gravitational potential energy. When it was let loose, it immediately fell to the ground.
Elastic Potential Energy: The tennis ball launcher is an example of elastic potential energy. It was staying still but when it was released the ball shot forward.
Kinetic Energy: The ball moving down the ramp had kinetic energy.
Static Friction- the tire's grip thing (I dont know what it is called) causes the tire to touch less of the ground, having less friction.
ReplyDeleteKinetic Friction- when each of the balls are moving in the direction, either in the cut out groves in the wood or the globes on the metal bars, it has friction even though the balls are moving.
Work- when the man pushed the car and when an object is moving other.
Gravitational Potential Energy-when a ball is at rest on the top of each ramp.
Elastic Potential Energy- when the guy is pulled back by a bungee cord. The bungee cord is the elastic.
Kinetic Energy- every moving object in the video- for example the moving TV that got smashed.
Static Friction - at the beginning of the video when the red toy car was still and one of the members from 'Ok Go' pushed it to set it into motion.
ReplyDeleteKinetic Friction - when the red car hit the dominos (with force) to set the dominos into motion.
Work - the fan using wind power to push the umbrella used up energy, force, and direction.
Gravitational Potential Energy - when the piano was dropped, gravity pulled it down switching it from potential to kinetic.
Elastic Potential Energy - When one of the band members has a harness on and a spring is holding him and once the spring is fully stretched or pulled it is released therefore sending the band member backwards and gliding down
Kinetic Energy - at around 2:34 when the giant metal ball was moving down the rail. It's kinetic energy because the ball is in motion.
Static Friction- In the beginning, the stationary car has static friction because while at rest, its microscopic irregularities in the surfaces are settled causing it to stay still.
ReplyDeleteKinetic Friction- When the rubber tire is moving down the wooden ramp, kinetic friction is present. The surface of the obstacle and tire are in contact while the tire is in motion, thus eventually slowing it down.
Work-In the beginning the man applied work to the car. He applied force to the mass over a certain amount of distance, thus sparking the Rube Goldberg contraption.
Gravitational Potential Energy- A heavy oil barrel is suspended in the air. It has the potential to fall with gravity until it hits the ground. The barrel's height in the air and mass primarily contribute to how much energy the object has.
Elastic Potential Energy-The man is shot back due to a bungee cord. No force is applied in order for the action to occur, only the elastic energy which the cord has is needed.
Kinetic Energy-While shooting through the air toward Ok Go's faces, the paint has kinetic energy. The mass is going at a certain velocity. No force is present while the paint is moving through the air, only kinetic energy.
Static Friction: The chrome marbles in the wooden sculptural table with the grooves on it are staying still because of static friction between the marble and the table.
ReplyDeleteKinetic Friction: The plastic cup with a hoop that is spinning around the candle holder shows kinetic friction because without any friction it would slide straight down and hit the table but because of the friction, it loops around until it hits the table.
Work: The fan that is blowing air at the umbrella moves the umbrella over a short distance. This is an example of work because the fan is applying a force to the air which is applying a force to the umbrella (over a certain distance).
Gravitational Potential Energy-The piano, which is above ground (automatically giving the object a potential energy), has a mass and height.. and when the strings let go of the piano, gravity pulls it down and during this process, the potential energy is changed to kinetic energy.
Elastic Potential Energy- The pin that holds the flag from flipping to the other side has elastic potential energy because the flag wants to flip to the other side; however, the pin is holding it from doing this.
Kinetic Energy-At the end of the video, when the gym ball is rolled at the trigger of the guns, kinetic energy is shown because there is a mass and a velocity and as long as these two things are satisfied.. there is kinetic energy
Static Friction: The red toy car at the start of the video has static friction (before the man moves it) because the car is stationary, and has no outside force acting upon it.
ReplyDeleteKinetic Friction: The tiny toy cars moving on the grooves of the wooden track (towards the start of the video) have kinetic friction, overcoming the tiny, microscopic irregularities of the track, although with less force.
Work: The man who pushes the red toy car at the start of the video involves work since he is the force that is acting upon that object, and that object covers some distance before hitting the dominos. (Work=Force x Distance)
Gravitational Potential Energy: The piano has the gravitational potential energy to fall (kinetic energy) when the rope breaks. The piano has a lot of mass and not too much height between the ground, which is proportional. (G.P.E. = mass x gravity x height)
Elastic Potential Energy: The bucket of blue paint, tied to a springy- like elastic band has elastic potential energy to fall down, and come back up again.
Kinetic Energy: The huge red ball towards the end of the video has kinetic energy while rolling, and is stopped when hitting the paint guns.
Static Friction- The car is immobile and has static friction until it is pushed and rolls down the incline.
ReplyDeleteKinetic Friction- when the black marbles hit each other, they apply force to one another and push each other down the incline.
Work-when the stick knocks over the chair backward. When it falls backward it moves backward and also initiates a chain reaction among the other chairs behind it.
Gravitational potential energy- When the signs are tied at the beginning of video, they each have gravitational potential energy because the strings are holding them up, until they release and gravity pushes them down.
Elastic Potential Energy-this is displayed when the globe rolls by the man in blue and detaches the chords connecting him to the pole. Before this happens he has elastic potential energy because when the chord detached the elastic band would pull him backwards.
Kinetic Energy-The last large ball has kinetic energy as it rolls down the ramp before it triggers the cannons to fire paint.
Static Friction- The tire when in place is held there by the dip in the plank and the edges of the tire. Static Friction allows it to stay in place
ReplyDeleteKinetic Friction- When the chrome marbles all came down to that one line, one had to hit another one to move the next and so on.
Work- When the man moves the car at the beginning he applies force to move that car
Gravitational Potential Energy- The Globe had gravitational potential energy and eventually fell when it had a big enough opening.
Elastic PE- When the man is bungeed to the back, he has elastic potential energy from the rope he is tied to. When he is knocked back, the rope releases its energy and allows him to fly back.
Kinetic Energy- The Marbles moving across the wooden table had kinetic energy.
Static Friction: WHen the car is not moving and is still, it has static friction. The small ridges on the wheels lock in with the small ridges or bumps on the platform, like the drawing we drew in our notes. Until another force (the push) is applied, the car will not move and will remain 'locked in' to the ridges on the platform.
ReplyDeleteKinetic Friction: When the marble rolls down the slope, there is Kinetic Friction as the small ridges or bumps on the slope slow down the rolling marble and prevents it from gaining even more speed and never stopping.
Work: The guy pushing the car is an example of work. The guy, who acts as an outside force to the car, applies a force to the car which then applies another force tot he object it hits, creating the domino effect.
Gravitational Potential Energy: The piano is an example of gravitational potential energy. Because it has such a heavy mass, it has alot of potential energy. ALthough it is not very high, which causes more potential energy, its huge mass makes up for its lack of height giving it alot of potential energy; it will be brought down by gravity, when an outside force acts upon it.
Elastic Potential Energy: The blue paint can is held up by an elastic-like band, and it has potential energy so when it drops it can bounce up or move with the band.
Kinetic Energy: When the ball rolls down the spiraling railing, it has kinetic energy. As it follows the spiraling path and picks up speed, its kinetic energy increases because it is going down hill.
Static Friction- The car in the beginning of the video has static friction because it is at rest. The tire and the surface have friction causing the car not to move.
ReplyDeleteKinetic Friction- When the soccer ball was rolling down the two metal poles, it had kinetic friction because as it was moving, there was still friction slowing it down.
Work- the man pushing the car is doing work because he is applying force to the car.
Gravitational Potential Energy- When the piano is held above the ground, it has gravitational potential energy because it has the potential to fall because of gravity
Elastic Potential Energy- The bungee chord that pulled back the guy, has elastic potential energy because it went back to its original shape when it was let go.
Kinetic Energy- the red ball at the end of the video that was rolling had kinetic energy because it was moving. And when it stopped, it no longer had any kinetic energy.
Static Friction- At the begnning of the video, right when the man pushed the car as it was about to hit the dominoe, the car was at rest. And when something is at rest it would be considered as static friction.
ReplyDeleteKinetic Friction- When the marbles were rolling down the slop there was kinetic friction, because, although the object is still in constant motion but slows down. In this case there were grooves and bumps on the slops which cause the marbles to roll down slowly and with not as much speed and velocity.
Work- In the beginning of the video, right as the man is pushing the car into the dominoes this would be considered as work. He had to have energy to push the car forward and because, he is aplying force.
Gravatational Potential Energy- WHen the piano is being held right about the ground; this would be considered as gravational potential energy because it has the potential to fall because of gravity.
Elastic Potential Energy- In the video there was a can of blue pain that was held by a bungee cord. Anything that is an elastic type thing would have potential energy to snap back into its original form.
Kinetic Energy- Any object that is being moved would be considered as kinetic energy. In this case for example it would be the red ball or the marbles. There movement would be kinetic energy.
Static Friction: The car at the beginning of the clip has static friction. It originally did not move because no force acted on it.
ReplyDeleteKinetic Friction: Kinetic friction is present when the big red is rolling down slope.
Work:At the very begging of the of the video, the man pushes the car. This is an example of work because he is using force in order to move the car into the dominoes.
Gravitational Potential Energy: This is present when the big blue bin fall onto the ground after hanging in the air.
Elastic Potential Energy: An example of elastic potential energy is present when the bungee rope doesn't allow the man to fall all the way to the floor (it hold him up).
Kinetic Energy: Kinetic energy is in action during all parts of the video. One specific example is when the globe ball is rolling down the two poles.
Static Friction: In the beginning the toy car has static friction because since the tires are acting against the table and there are no forces of motion being applied to it, it is at a stand still.
ReplyDeleteKinetic Friction: When the guy moves the toy car after it is in a mode of static friction, kinetic friction initiates because not only are the tires acting against the table but also the air is acting against the car and the dominos for that matter, causing air resistance which is a part of the kinetic friction of the car.
Work: The guy is using work to move the car. He is using a certain amount of force over a certain distance to get the car to its position/destination.
Gravitational Potential Energy: When the piano is being held by the rope, because it is above the ground by some distance, gravity is acting upon as a result increasing the potential energy of the piano and its ability to fall down.
Elastic Potential Energy: When the basketball is rolling into the metal basket that is intended to be the hoop, the basket small metal basket we can say starts out at 9 ft but ends up at around 7 ft after it catches the ball meaning that the force of the ball acted upon the basket causes it to decrease yet still hold the weight of the ball, the same way the the green spring held the weight in class.
Kinetic Energy: Going back to the piano, when the piano was released, it changed from it's rested potential state to a state of motion, in which the force of gravity had been acting upon and thus giving it the ability and energy to fall to the ground and make an awsome fall.
Static friction- The car at the beginning of the video showed static friction before the man pushed it because it wasn't moving and there was friction between the surface it was on and its tires.
ReplyDeleteKinetic friction- When the tire rolls down the slide it shows kinetic friction, the interaction between the tire and the slide as it rolls down it creates friction.
Work- An example of work is when the man pushes the car to start the domino reaction. Since work is the product of force and distance, we can see that he's using force and pushing the car over a certain distance.
Gravitational potential energy- We see this with the piano that is suspended because the second it is released it falls to the ground. Nothing is acting upon it except gravity.
Elastic potential energy- When the man has the elastic band around him it shows potential energy because when it is released he is flung backwards into the boxes, nothing pushes him back except the elastic springing back.
Kinetic energy- When the ball rolled down the ramp at the end it was displaying kinetic energy because it was moving. When the force was acted upon it transferred its energy which caused it to stop.
Static Friction: There is static friction in the beginning when the car tires are rested against the table, the tires have static friction with the table.
ReplyDeleteKinetic Friction: When the metal balls are rolling in the wooden track , there is kinetic friction, because neither surface can be perfectly smooth so the ridges are catching.
Work: In the beginning of the video when the man pushes the still car into the dominoes. The man has to exert a force upon the car to make it move into the dominoes. (work)
Gravitational Potential Energy: The piano has gravitational potential energy because it is hanging in the air. The piano falls when the lever is hit.
Elastic Potential Energy: The man painted in blue has elastic potential energy when he is strapped up by the bungee cords. When he is released he flys backwards through the boxes.
Kinetic Energy- The bowling ball traveling down the spiral, metal track has kinetic energy because it is travelling down with speed, and moving. The movement is the kinetic energy.
First off it was very hard to keep track of everything that was going on but I'll do my best...
ReplyDeleteStatic Friction - Dominoes at the beginning (before being knocked over) have static friction because there's no force causing them to topple. Also there is the toy car... but everyone mentioned that so I feel it pointless and monotonous to repeat it.
Kinetic Friction - When the car hits the dominoes and the dominoes thus fall and knock one another over, as well, it is kinetic friction because an outside force causes the dominoes to move. Also when the ball is rolling down the slope it is kinetic friction because it is rolling and moving on a solid surface.
Work - There is work in everything such as when the hammer drops causing the tv to break it takes a certain amount of force and distance to increased velocity of the hammer when it comes down to break the tv.
Gravitational Potential Energy - when the TV is suspended in front of the silver ball gravity is acting against it wanting to make it move so once the ball hits it the potential energy turns into kinetic causing the tv to move back and get hit by the hammer.
Elastic Potential Energy - When the words "THIS TOO SHALL PASS" fall down they bounce up and down for a while because elastic potential is keeping them from falling to the ground.
Kinetic Energy - With essentially any moving object (and a lot moves in this video) there is kinetic energy... For example when the piano is falling there is increasing kinetic energy with its increasing velocity in the fall.
The End.
Static Friction: The lego car has static friction because of the wheels.
ReplyDeleteKinetic Friction: All of the dominos that fall have kinetic friction since they hit each other to move.
Work: The guy in the beginning is using work to push the car.
Gravitational Potential Energy: The big piano that is suspended on the rope has a lot of gravitational potential energy because it is big and heavy.
Elastic Potential Energy: The mousetrap that launches the ball has a tightly wound spring that has a lot of elastic potential energy.
Kinetic Energy: The tennis ball that flies through the air has kinetic energy until it hits the bucket.
Static friction: Is when all the dominoes are stationary, and not moving. Because static friction is when an object stays in one position on a surface.
ReplyDeleteWork: When the man initial pushes the red car that starts everything
Kinetic Friction: When the car is moving on the little road thing. It is causing kinetic friction because it is moving, but the contact between the painted on road and the wheels is causing friction.
Gravitational P.E: When the piano is off the ground, hanging. It has the potential to fall, especially because it has a lot of mass
Elastic P.E: When one of the singers from the band was connected to a stretchy cord, pulling him back into the boxes
Kinetic Energy: In the beginning when all of those balls are going through the maze sorta thing, it is calling kinetic energy because all the balls are in motion
Static Friction
ReplyDeletean example of static friction is when the basketball lands in the net, and the net stops it, this is static friction because while the ball isnt moving, the net is still applying a certain amount of friction.
Kinetic Friction
In the very beginning of the video, and in all other examples like this one, when the ball is pushed and rolls down the ramp.
Work
An example of work is when the weight attached to a pulley lifts the small statue, this is work because gravity is pulling the weight down and the statue up a certain distance.
Gravitational Potential Energy
When the marble rolls out onto the table, and lands in a cup attached to the end of a stick, the weight of the marble causes the cup to move down, which caused the other end of the stick to move up, and then fall down due to gravity.
Elastic Potential Energy
Toward the beginning where there are two marbles, one lands in a net attached to a coil, then the net is released and the coil flings the marble away.
Kinetic Energy
After the glass sequence, a ball is sent rolling along two beams, this is kinetic energy because the ball is moving and has energy.
static friction
ReplyDeleteWhen each object or obstacle is being held in place waiting for a force to be acted upon it
- the black tire
-the car
kinetic friction
-when he moves the car on to the surface
-when the ball starts rolling after
-when the ball is stopped
-when the globe rolls down
When an object is moving on a surface kinetic energy is present.
work
-When the red car is being pushed at the beginning
Gravitational pe
-the piano
elastic pe
-when he puts his goggles on
-when the cord is being stretched and is released
kinetic energy
-the metal balls pushing on each other
-the hammer
Static Friction: the toy car at the beginning has no outside force acting upon, therefore it is at a stand still.
ReplyDeleteKinetic Friction: the marbles traveling down through the grooves of the wooden structure have kinetic friction because the wood is not 100% smooth, so the tiny bumps gradually slow the marbles down.
Work: the guy has to use force on the toy car to start the Rube Goldberg machine.
Gravitational Potential Energy: the tire sitting at the top of the wooden structure has gravitational potential energy because gravity is pulling it towards the ground, and one little push (from the cone) will make it roll down the wood.
Elastic Potential Energy: the slingshot, using a rubber string, after the car hits a fence, it pushes the slingshot and makes it release the tension (with another string) to make the guitar move.
Kinetic Energy: the soccer ball moving through the 2 metal poles has kinetic energy because it has motion.
Static Friction: the small toy car at the beginning of the video has static friction because no external force is acting upon it to cause kinetic energy. The man has to push the car in order for it to begin moving (an external force).
ReplyDeleteKinetic Friction: When any of the balls are rolling down the rails there is a different kinetic friction for each of them because the balls and rails are different sizes and masses which allows more or less kinetic energy.
Work: When the TV is pushed backwards then smashed work from the bowling ball was required to move the TV because work=force*acceleration
Gravitational Potential Energy: When the piano is hanging in the air it has potential energy to fall because of gravity.
Elastic Potential Energy: When one of the guys flies backwards because of a spring there is elastic potential energy because the spring is released by a ball which causes him to fly backwards.
Kinetic Energy: Nearly the entire video had an object with kinetic energy, but one example is the car rolling backwards after being in a held position.
Nick Martin
Static Friction: The small toy red car in the beginning of the video, because it has no external force acting upon it, therefore it is at a stand still.
ReplyDeleteKinetic Friction: When the marbles are rolling down the wooden rails; due to the fact that the rails were wooden and not completely smooth, there was friction causing the marbles to slow down and not reach their full potential speed.
Work: When the man was pushing the car - he was using a certain amount of force to push the car over a certain distance.
Gravitational Potential Energy - When the piano is hanging in the air - if it is released then gravitational forces will act on it and bring it down to the ground.
Elastic Potential Energy: The mouse trap which slings the ball contains a high amount of elastic potential energy due to the tightly sealed spring.
Kinetic Energy: Every moving object in this video (which is a lot...) so basically nearly the entire video is filled with kinetic energy
Static Friction: When the car is being held, it is standing still with static friction. The car is in place until the outside force is applied and the tires are hit.
ReplyDeleteKinetic Friction: When the green marble is rolling down the ramp, kinetic friction is being caused because the marble is touching the ramp while moving at the same time.
Work: When the man pushes the car, work is being applied. He uses force to push the object, which is a perfect example of work.
Gravitational Potential Energy: The piano that is above ground has both mass and height. When the rope breaks, the piano has the gravitational potential energy to fall once the rope is broken. The greater mass makes up for the lesser height by giving it a lot of potential energy.
Elastic Potential Energy: The blue paint can is tied to a spring-like band, the elastic band has the elastic potential energy to fall down and go up again.
Kinetic Energy: The marbles moving on the rail would be one example of kinetic energy. However, there are examples of kinetic energy throughout the video, because any object that is moving is considered kinetic energy.
Static Friction - the net is creating friction after the basketball falls in the net and it becomes stationary because of the net.
ReplyDeleteKinetic Friction - In the beginning of the video when the guy moves the car for a short distance until the car hits the dominos creates more kinetic friction on the surface because it is moving against the car.
Work - When the long stick flips up to hit the big red ball and make it move down the short ramp shows work because a force was applied and it was going for a certain distance
Gravitational Potential Energy - When the piano is hanging, it creates gravitational potential energy because it has potential to fall and it is very heavy as well.
Elastic Potential Energy - When the man begins to fall, but there is a rope attached to him so he doesn't fall completely to the ground shows elastic potential energy in the video.
Kinetic Energy - Energy has been transferred to and from many different objects in the video and it caused a certain physical change so there was basically kinetic energy throughout the whole video.