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When the ball hits the floor, the ground exerts a force to slow it down to a stop.
The top of the ball isn't being pushed by the floor to the same extent, so travels a little bit closer to the floor than it would do if it were just placed on the floor.


The ball, now, is squashed very slightly; so to go back to being spherical, it has to extend in the direction is was squashed in. This means it exerts a force both directly up, on the air, and directly down, on the floor.


This force makes it jump back up again. The height it jumps back depends on how bouncy the ball is, so how elastic the collision with the floor is.

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Q: How does a ball which falls down bounce back?
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Why doesn't a bouncy ball bounce as high as from where it was dropped?

Because some of the energy is lost in the bounce the air Resistance and gravity fighting to get the ball back to the ground while it is coming up. However if you throw it down hard enough theoretically it is possible to get the ball to bounce back all the way. this would be because extra energy has been put into the ball enabling it to get back.


When you bounce a ball why do the particles on the floor bounce up with it?

Conservation of momentum. When the ball bounces off the ground, the momentum of the ball is conserved, and since it bounces back up, the ground has to go down. On a hard concrete surface, which is very rigid, the ball moves a large portion of heavy concrete only a minute amount. On a wood or matted floor, only the ground right around the ball goes down (because the material is somewhat elastic/flexible). The particles either appear to jump because the ground is lowering, or they are flung upwards when the ground reverts back to its normal shape.


When a stone is released it falls down on ground bt when put no constraint on molecules of th air yet why they do not all fall to tha ground?

A single molecule will fall to the ground - and then bounce back. The fact is that there are lots of molecules, and they also bounce against each other.A single molecule will fall to the ground - and then bounce back. The fact is that there are lots of molecules, and they also bounce against each other.A single molecule will fall to the ground - and then bounce back. The fact is that there are lots of molecules, and they also bounce against each other.A single molecule will fall to the ground - and then bounce back. The fact is that there are lots of molecules, and they also bounce against each other.


How does friction affect the bounce of the ball?

if the ball is dropped at an angle, it puts a torque on the ball, created by the velocity in the x direction, making it spin if ball is moving straight down, it has no effect.


What two factors affect the amount of elastic potential energy and how do they affect it?

Mainly, what much energy of other types was converted to elastic energy. For example: if a ball falls from a certain height, and assuming a perfect bounce and no air resistance, all the potential energy is converted to kinetic energy as the ball falls down, which in turn is converted to elastic energy when it hits the floor. Then the elastic energy is converted back into kinetic energy, as the ball bounces back up.

Related questions

What is hockey Sack?

Hacky sack is a soft ball you bounce up & down off your foot. It was a fad a while back.


Why doesn't a bouncy ball bounce as high as from where it was dropped?

Because some of the energy is lost in the bounce the air Resistance and gravity fighting to get the ball back to the ground while it is coming up. However if you throw it down hard enough theoretically it is possible to get the ball to bounce back all the way. this would be because extra energy has been put into the ball enabling it to get back.


Can things bounce down?

Yes, if you throw a ball at the ceiling it bounces down


Ball bouncing dynamics?

There are many sports that use a ball, believe it or not but balls have a long history and can be used in various ways. Bouncing is basically the main source to a ball. The question is "what makes a ball bounce". Let's say you were to drop a ball in slow motion, video tape it, or watch the ball closely, you would actually see the ball change its shape. When the ball hits the ground it flattens. Then when the ball comes up it returns to its original shape, this is because of forces and energy. When you drop a ball gravity pulls it toward the floor, the ball gains energy of motion, acknowledged as kinetic energy. When the ball hits the floor and stops that energy has to go "somewhere." The energy goes into deforming the ball-from its original round shape to a squashed shape. When the ball deforms its molecules are stretched apart in certain places, but in other places the molecules are squeezed together. I believe that other than gravity the ball bouncing flat is what helps the ball bounce back up. Does how much air that is in a ball change how high, low, fast, or slow the ball bounces? How much air in a ball does have a great affect on the ball. If you have no air in your ball, how will it bounce back up? When you let the ball go to hit the ground the ball is suppose to bounce back up, but if you have "no'' air in your ball and you let it go the ball might change the shape but it wouldn't bounce back up to you. If you were to have a lot of air in your ball then when you are letting the ball go, the ball will bounce back up and down, a lot of the times a human only has to bounce a ball once for it to bounce at least 3-6 times on its own.


When you bounce a ball why do the particles on the floor bounce up with it?

Conservation of momentum. When the ball bounces off the ground, the momentum of the ball is conserved, and since it bounces back up, the ground has to go down. On a hard concrete surface, which is very rigid, the ball moves a large portion of heavy concrete only a minute amount. On a wood or matted floor, only the ground right around the ball goes down (because the material is somewhat elastic/flexible). The particles either appear to jump because the ground is lowering, or they are flung upwards when the ground reverts back to its normal shape.


Do all balls bounce and why?

All balls will bounce based on the surface you bounce it on. Even a bowling ball will bounce at least a centimeter or half a centimeter even though it is hard to determine whether it is getting off the ground or not. Of course it wont bounce if you bounce it on something soft and break through, but it will bounce on a hard cement floor. It will bounce because it will have potential energy weighing it down and if the floor is harder than the ball, the ball will move off like opposite sides of a magnet. but only for a while until our gravity pulls it down and stops it. Hope that helped.


Is jumping on a trampoline an example of newtons 3rd law?

because when you bounce up and come back down it bounce you back up.


When a stone is released it falls down on ground bt when put no constraint on molecules of th air yet why they do not all fall to tha ground?

A single molecule will fall to the ground - and then bounce back. The fact is that there are lots of molecules, and they also bounce against each other.A single molecule will fall to the ground - and then bounce back. The fact is that there are lots of molecules, and they also bounce against each other.A single molecule will fall to the ground - and then bounce back. The fact is that there are lots of molecules, and they also bounce against each other.A single molecule will fall to the ground - and then bounce back. The fact is that there are lots of molecules, and they also bounce against each other.


How would the temperature effect the bounce of a basketball?

The temperature of a room will effect the amount a ball will rebound (bounce) off the floor, off a backboard or rim. If a basketball is filled with air to the regulation pressure and then it is moved to a room with a higher temperature, the ball will soon start to bounce more. Alternatively if you move it a cooler room it will bounce less. This is because: Pressure = Volume x Temperature. As the temperature rises (assuming there is no leak in the ball to allow the volume of air to escape) the pressure on the inside of the ball will increase, this will increase the bounce of the ball. If, instead of the temperature rising, it decreases the pressure on the inside of the ball will go down and the bounciness of the ball will go down as well.


What makes a ball bunce?

If you mean bounce then here is your answer, Friction causes the ball to have the gravity forcing it down recoil and sed it upwards.


How does friction affect the bounce of the ball?

if the ball is dropped at an angle, it puts a torque on the ball, created by the velocity in the x direction, making it spin if ball is moving straight down, it has no effect.


Does the temperature of a ball affect how high it bounces?

The mocules for cold air are slower so it makes it not bounce as high and the normal temperature bounces higher.