In this sports science project, you will determine whether any of the energy of a bouncing basketball takes on the form of heat. Another form energy can take is heat, also called thermal energy.
Some of the energy from the impact is also absorbed by the court's surface, and energy also changes form because the basketball briefly changes shape (it flattens slightly) when it hits the ground. For example, the sound of the ball hitting the ground comes from some of the kinetic energy being changed into sound. Where does the "lost" kinetic energy go? There are many other forms of energy that it can turn into. As it bounces, it transfers some of its energy to another form, so each bounce is not as high as the one before it. A bouncing ball has both kinetic and potential energy. After a few bounces, it stops bouncing completely. This is because the basketball had an inelastic collision with the ground. (On the other hand, an elastic collision is when the kinetic energy is conserved - it is the same before and after the collision.) When a basketball bounces (without being pushed down), it does not go all the way back up to its original height, as shown in Figure 2 below. A collision where kinetic energy is lost (by changing forms) is called an inelastic collision. When the basketball hits the floor, some kinetic energy that the ball has is transferred into another form of energy. We know that based on the law of conservation of energy, energy cannot be lost, but it can change form. But, the ball also speeds up, so its kinetic energy increases.Īs we mentioned earlier, when the basketball hits the court's floor, it "loses" some energy. As the ball gets closer to the ground, its potential energy decreases. If you drop the basketball, the force of gravity pulls it down, and as the ball falls, its potential energy is converted to kinetic energy. If you hold it higher, such as up over your head, it has even more potential energy. (A basketball resting on the floor has no potential energy.) For example, when you hold a basketball at waist level, it has some potential energy. Potential energy is the energy stored in an object due to its height above the ground.
But a basketball that is not moving at all has no kinetic energy. A fast-moving basketball has more kinetic energy than a slow-moving basketball. Any object that is moving has kinetic energy. Kinetic energy is the energy an object has due to being in motion. When a basketball bounces, it has two different types of energy: kinetic energy and potential energy. men's Olympic team, the ball actually transfers some of its energy on each bounce (Airman 1st Class Daniel Hughes, 2012). When a player dribbles a basketball, as Kobe Bryant does here on the 2012 U.S.
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