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what surface does a basketball bounce the highest
Transcript of what surface does a basketball bounce the highest
Based on these results, the wood surface absorbed the least amount of kinetic energy because it bounced the highest on that surface. This explains why most modern day basketball courts are made of a hard wood surface.
hypothesis- I think the ball will bounce the highest on the concrete because it will not lose as much kinetic energy on a hard surface
1. Use a tape measure to mark the wall that you will bounce the ball next to. Tape the painters tape to the wall and make 10 marks 5 inches apart from each other.
2. When video taping, make sure you can see all 10 marks on the wall. You will need another person to record you dropping the basketball.
3. Test the basketball on each surface you choose. Hold the ball so that the bottom of the ball is lined up with the highest mark on the wall. Drop the basketball and let it bounce back up and then hit the ground a second time before catching it. Write down the mark where the ball bounced back up when you caught it. Repeat this step 9 more times for a total of 10 times and on 2-3 other surfaces. Make sure you have at least one hard surface and one soft surface.
Tuesday, April 1, 2014
-different surfaces to bounce a basketball on at least 3 surfaces. they should be steady, for just some examples: carpet, concreate, grass, linoleum, and a basketball court.
-tape measure, metric
- video camera, examples: phone or ipad or ipod
-optional: note cards, index cards, sheets of paper, or something else to write numbers on 
-volunteer to video tape, or a tripod
- access to a computer or large screen to watch your records on
When bouncing a basketball, what surface will absorb more energy, a soft or hard one? Why?
When a basketball bounces, it has two different kinds of energy: kinetic energy and potential energy. Kinetic energy is the energy an object has due to motion. Potential energy is the energy stored in an object due to its height above the ground. So what do kinetic energy and potential energy have to do with how a basketball bounces on the court? When the basketball hits the court's floor, it seems to "lose" some energy. The scientific explanation is that some kinetic energy gets converted into energy in the form of sound, heat, and somewhat changes the shape of the ball (flattening it slightly). The court's surface also absorbs some of the energy. When a collision occurs between the ball and the surface and kinetic energy is lost, it is called an inelastic collision. When a basketball bounces (without being pushed down), it does not go all the way back up to where it started from. This is because the basketball had an inelastic collision with the ground. After a few bounces, it stops bouncing completely. The ball has lost all energy!