Now that you actually have a place to post a comment (oops!). Just describe any force (other than gravity) that you notice in the video. Try to include good details about what caused/created the force and what happened as a result of that force being applied.
Bonus; Does anyone want to try to explain why high-speed filming (shooting hundreds frames per second) makes the video look slo-mo during playback?
(FYI, this would be considered extra participation.)
When a tennis ball is bouncing up and down on a tennis racquet, its VELOCITY is radically increasing and its acceleration is CONSTANT because gravity is a constant accelerator. Friction and air resistance are very important force because it decelerates the ball. Newton's law is very significant for this situation because, as he states, "an object in motion stays in motion unless acted upon by an outside force." Here, the tennis ball is in motion until it collides with the tennis racquet (friction!!), the outside force.
ReplyDeleteOne of the present forces in the video was velocity demonstrated by the golf ball rolling off the desk. When The golf ball was pushed it started to gain speed and distance and since the golf ball had velocity instead of falling directly downwards it continued to gain distance even as it fell.
ReplyDeleteAnd I think the reason we see the video in slo-mo is because the eyes only process somewhere between 12 and 16 frames at a time so because there are so many moving frames our eyes can't keep up and the video appears as if it is moving slowly.
Sorry I forgot about the bonus... :)
ReplyDeleteBut I do agree that our brains can only contain so many frames already, that increasing the amount of frames can mess with our brains and make it appear as if the action was moving more slowly
When Mr. Roman is pushing the golf ball of the table he is applying initial force which is passing on energy to the golf ball to help it start go into motion. As a result the ball's certain acceleration keeps it going as it moving across the table and and increase as it slowly, yet quickly, falls of the table also applying horizontal and vertical vectors moving the ball in certain directions. Also the air resistance applies to the ball as it slows down at a certain time in its path.
ReplyDeleteBonus: The videos are in slo-mo because like you said Mr. Roman, the camera is taking hundreds of pictures per second making each picture frame a stand still. In this idea, each picture is taken in a millisecond every time presenting the idea that the video shot is like a flip picture booklet but because there so many pictures taken to shoot the video (probably more than a regular camera takes when it is shooting video) the frames slow down to cohesively present the video.
The marshmallows are shot from the gun because the air pressure created by pumping the gun has an outlet when you press the trigger (making an opening through which the high-pressure air can escape). But, there is one thing in the air's way: the marshmallow. so the air shoos the marshmallow out of the barrel so that it can go back to stable pressure (1 atm).
ReplyDeleteBonus: the video looks slo-mo because when you shoot it, you're shooting more frames per second than the brain can register. but when you play it back, (i have two theories) the camera platys it at a speed that your brain can register all of the frames. or, when you play it back your mind is registering all of the frames it would not have been able to register before. so, your mind compensates for this by making the video appear slower. (I think it's the first one).
In the scene where the ball is rolling, it had its initial force, probably applied by a throw or roll, and then it was constantly being pushed against by the force of friction and started increasingly slowing down, the friction caused by the grass and air around it were the cause of it slowing down.
ReplyDeleteBonus: The camera is shooting frame by frame, so its basically a large flipbook, and when its played, since there are tons of frames per second, it appears to be in slow motion because it is being shot scene by scene.
In the scene of the marshmallow guns, the amount of pumps created more air pressure and the releasing of that air pressure forced the marshmallows out and flying and with air friction slowly forcing the marshmallow to slow down and then the ground force stopping the marshmallow (causing it to bounce a bit)
ReplyDeletebonus: the camera shoots frame by frame capturing every movement and since there are so many frames (for each moment captured) although it may be going fast we see it as if it is going in slow motion.
When someone pressed their fingers in the sand, the pressure exerted from their hand forced the moisture that was on top of the sand, below the sand. The sand becomes dryer because the water seeps below the surface of the sand and is stored there; when the pressure from the fingers is released, the water below the sand rises to the top again.
ReplyDeleteBONUS: High speed filming makes the video in slow motion because it picks up every tiny movement in front of the camera. All of the frames of video combined create detailed motion that is displayed slowly.
The force of air pressure in shown in the scene with the marshmallow shooting. The marshmallows fly because of air pressure. When the marshmallow gun is pumped, air pressure builds up. The pressure is released when the trigger is pulled which sends the marshmallows flying.
ReplyDeleteBonus: High-speed filming makes the video slower because it takes longer to show hundreds of frame a second as opposed to showing only a few frames per second.
In the scenario involving bocce ball, friction is one of the main forces that slows the ball down. If you throw the ball with a vector that is more vertical, more energy will be transferred to the ground compared to a ball thrown on the horizontal vector that will have less energy transferred to the ground. since more energy will be transferred to the ground when the ball is thrown on the vertical vector, their will also be an increase in friction, making the ball roll less; that is because friction is dependent on the amount of contact force that is pushing the two surfaces (ball and ground) together.
ReplyDeletebonus: the human eye can only process a certain amount of frames per second. if your camera is set to take a lot more frames than the human eye can process, it results in a bundle of pictures taken at very fast increments. if your pictures were set as twice as fast as the human eye, there will be twice as many photos. when you compile it together, it looks slower because there are so many frames.
When the marshmallows were shot out of the gun, most of the time they flew into the air in result of how many times you pumped the air into the guns. Air pressure was being applied more and more into the gun to shoot them. once the trigger is pulled, the pressure forces the marshmallow out into the air at high speeds. The marshmallow would pick up speed, but it is constantly being slowed down by friction.
ReplyDeleteLets first consider the video segment with Rachel throwing the ball.. Her hand pushes the ball from her body into the air into a projectile projectory. The force vector that she creates has both a horizontal and vertical component. This means that the ball going at an arching angle.
ReplyDeleteWhen I score the marshmallow into the trashcan, I applied a pressure force because the gun pumped and created high pressure for the marshmallow. The marshmallow went up at an arching angle and it came down perfectly in the trashcan. This is another example of projectile motion.
Bonus:
It appears to be in slomo because more frames per second are shot; therefore, a motion that usually takes 1 second, will now take a larger time due to the faster filming rate.. ***it records more frames per second than the eye sees***
When the marshmallows were shot out of the gun, air pressure being released is the force sending them out the barrel and into the air, traveling until gravity and friction in the air (resistance) brings them down. The more air pumped, the stronger the burst of air is, resulting in a farther shot.
ReplyDeleteBonus: a smooth flowing film is 24 frames per second. If one were to slow that down, there would be a time gap between each frame. High-speed filming captures so many frames so that when u slow it down the video can still flow smoothly
The force applied on the marshmallows and to the wet sand was pressure, the more pressure you applied (more pumps in the case of the marshmallows) the farther the marshmallow flew and the drier the sand got. In the video of the soccer ball being kicked and the ball rolling the force was from whatever pushed the ball initially. The soccer ball, for example, rolls because of the initial force it's given when it is kicked, then friction and air resistance slow it down.
ReplyDeletebonus: I think that videos appear to be in slo mo because initially when you watch a video you are seeing all of the frames, but you see them so fast that your brain blends them together as a flowing action, so when you put something in slow motion and show it frame by frame you're seeing the same thing that you saw at regular speed except it appears to be slower.
When pressing the wet sand with your fingers, the force of your fingers breaks the bond of the water which holds the sand together,allowing the formation of tiny cracks in the sand. The water seeps through the cracks and moves away from your fingers, making the sand around you drier. When your fingers leave the sand, the force is gone and so the water travels back up, having a strong surface tension with the sand particles, again.
ReplyDeleteBonus: High-speed filming makes the video look like it's in slo-mo during playback because... high-speed filming takes hundreds of frames per second, making it very detailed, which the human brain cannot see, and so when you play the video back, the camera slows the frames down to your brain's level so the video is visible to the human's pace!
When Mr. Roman pushes the ball off the table, he is applying force to the ball with a horizontal vector. As the ball goes off the the table, it goes more horizontally then vertically; however, as the ball starts to lose its momentum, the ball starts to go more down than going sideways. It keeps going more more vertically until it finally hits the ground.
ReplyDeleteBonus: The video looks slow-mo because when you are recording the video, you are shooting so many quick frames in a second that your brain can't register them all. But when you play it back, the camera plays it at a speed that your brain can actually register.
One force that was demonstrated in the video was the pressure in the Marshmallow shooter. as more air was pumped into the gun, the pressure rose and ultimately pushed the marshmallow further away.
ReplyDeleteBonus:The video is in slow-mo because it takes more time to display the individual frames, whereas with slower frames you brain can understand the action and create a more fluid video
-Michael Sliskovich
The gravitational force pulling down on any of the men is opposed by a normal force pushing up from the ground which is the reason the man does not simply sink into the floor and instead the ground stays at an even level.
ReplyDeleteOur eyes cannot keep up with the frames per second.
That was big nick ^
ReplyDeleteBecause you pump air into the gun, the force of the air allows the marshmallow to travel a very far distance until the force of gravity and fricton(the air resistance) applies a strong vertical vector and slows down the horizontal vector to make the marshmallow fall down.
ReplyDeleteBonus: the high speed filming is able to catch more details than the normal filming because we, as people, could not capture such quick frames in normal speed.
The first force I noticed was when someone served the ball, the person is using the racket to force the ball to the ground. Then when Rachael threw the ball, she gave the ball force witch turned into kinetic energy. Then when Mr. Roman through that little ball off the desk, he is giving it force, then the ball has a lot of kinetic energy, then when the ball hits the floor, that is force too.
ReplyDeleteBonus: When you use high-speed filming you are taking 100 frames per second, witch means u are taking a quick pic after each second, allowing u to have a photo of each moment
There is force being used when the ball is being kicked in the beginning of the video but the force is no longer being taken placed after the ball has left his foot.
ReplyDeletebonus - We can see more as it goes slower because it allows us to focus on the smaller things.
When Dr. Dave pushes the golf ball of the table he is applying intial force that causes energy to be passed on and help the golf ball move. As the ball falls it gains speed because of gravity constant increase of 22 mph per second. Also as the ball falls it losses horizantal vectors and gains vertical vectors becuase of gravity.
ReplyDeleteBonus- High speed filming makes the film slo-mo because the camera is capturing every move in the view of the camera. The way the camera films allows the film to be played as slow as possible and be played back smoothly instead of a normal film that would played back choppy.
In the clip with the ping pong ball and the paddle, the person applies upward force toward the ball that is falling down. The force from the paddle was created by the person holding it and the ball's force was created from gravity. Because the force from the person's swing was higher than they ball's downward force the ball moves back up.
ReplyDeleteBonus:
The camera is recording more pictures per second than we can see normally. Because the camera takes many pictures in a small amount of time, when the clip comes together the action that was recorded in these frames per second seems slower than normal.
In the marshmallow section: the air that is pumped into the gun is the force that propels the marshmallows. Then, the marshmallow is subject to gravity and falls accordingly to how much air resistance (i.e wind and other factors) there is.
ReplyDeleteBonus: since you are taking a video of 100 frames per second, every shot is a still picture, and when you play it back/render it or whatever, it flows smoothly to one's eyes, e.x: a flipbook, like what matt or somebody else said
When you push your finger into the sand, your force is creating little cracks in the sand allowing the water to sink in further. So, wen u release your finger, the water returns to the surface. For the marsh-mellow shooters, when you press the trigger the air pumped up from the gun, shoots the marsh-mellow.
ReplyDeleteBonus: because there are so many frames instead of less, the movie/video plays in slow mo
When Rachael threw the Bachi ball, and the ball landed on the ground it created force to shake the ground and make a "thud" noise. The ball did not bounce because the grass absorbed the force of the ball causing the ground to shake
ReplyDeleteBonus: the video is played back in slow motion since there are so many frames taken the video has to play each frame causing it to seem slower.
When the bachi ball is thrown the momentum of the ball is going forward, even when the ball is thrown high in the air. The ground absorbs some of the forward momentum, but the ball will still continue to move forward slightly.
ReplyDeleteBonus: The video is able to be played in slow motion because with such a high amount of frames, the video is able to capture each and every frame each second causing the video to be played back slower
As you continuously pump air into the marshmallow gun, pressure is increasing inside of the gun and the marshmallow's potential energy is increasing. Thus, when you pull the trigger all of the pressure is released until the pressure outside of the gun is equal to inside of the gun. The force and kinetic energy is initially directed toward the vector in which the gun is pointed, shooting the marshmallow in that direction. However the marshmallow's vector and speed is altered as a result of friction and air resistance.
ReplyDeleteBonus: By capturing more frames per second in high speed filming, much more detail is captured and there are so many more frames being displayed, thus more time is required in order to display all of these frames, making the effect slow motion.
The Bachi ball throw and roll demonstrate a force in the video. When she threw the ball higher in the air, it went far however, when it hit the ground, the grass absorbed, or took in the ball's energy, preventing the ball to continue rolling far. Unlike the throw, the roll proved to go farther because as it rolled on the ground, the grass did not take away its energy, it just allowed the ball to continue rolling with momentum.
ReplyDeleteBonus:
The reason high-speed filming appears in slow motion is because we are taking every single little movement and capturing it much faster. By capturing each movement much much faster, we can see not only every small detail, but everything appears slower and we can see more. There are more frames, or shots, so we see the action in slow motion. In other words, we are not just seeing the action as a whole like normal, but instead we see so many more frames of the same movement in much more detail, so it appears in slow motion.
When someone applied pressure on the wet sand, they applied enough force for the sand around the fingers to lift and create these small cracks underneath the sand for the water to seep through so the sand around the fingers is more dry.
ReplyDeletebonus: The reason why the high speed video is in slow motion is because it is capturing every moment and slows it down so we are able to see things differently with more detail as to how we see things now
Gravity brought the ball to the floor when it was pushed off the the counter. The ball fell faster when it got close to the floor. Gravity is a constant accelerator.
ReplyDeleteBonus:
the slow-motion camera captures more frames than a regular camera; more frames makes time seem like it slowed down.
A force I had examined in the video was the pressure exerted by the marshmallow gun. The more you triggered the gun and pumped air into it, the further it would go due to the additional pressure that was accumulated throughout the process of pumping it. Such pressure led to a surplus of energy being released, leading to an increase of speed and distance ascertained by the marshmallow.
ReplyDeleteBonus: Because a slow motion camera is being used, the images are being captured frame by frame, making the video and the process seem a lot more slowed down and detailed.
When Rachel threw the bocci ball up it went up at first, but the force of gravity brought it down. There was also friction acting on the rolling Bocci ball that made it slow down when it was on the ground.
ReplyDeleteBonus: The camera takes hundreds of frames per second so there are more images to be shown in the film thus making it apear to be going slower.
In the scene where Mr. Roman rolls the golf ball off the table, he uses the force from his hand. The ball's velocity has more of a horizontal vector than vertical as one can see when it first leaves the table, but then gravity kicks in and it falls to the floor, giving the ball more of a vertical vector now.
ReplyDeleteBonus: The filming is too fast for our eyes to see all the individual frames per second, so our brain forms it into slo-mo.
There is force applied when the ball is pushed and there is also force when the ball hits the ground. There is also air resistance while the ball is falling.
ReplyDeleteEC: Movies are just a lot of pictures played at a fast rate so it looks like one continuous film. The slo-mo camera just increases the number of pictures taken at one time so the film looks a lot slower than if shot by a regular camera.
In the part of the video where Mr. Roman is pushing the golf ball off the table, he is exerting the force to get the golf ball to the point where it then can roll of the table. This force is the force of his muscles that allow him to be able to push the golf ball. In order to get the ball to roll, Mr. Roman had to just enough force to move the total mass of the ball.
ReplyDelete