The law of conservation of energy
Is energy conserved in a ball drop?
The Law of Conservation of Energy
What happens to energy when a ball is dropped?
When you drop the ball, it gains ‘kinetic’ energy (the energy of motion) and loses its potential energy . ... This gives the smaller ball more energy, so it bounces off further!
Which ball bounces higher when dropped together?
When all three balls are dropped from the same height, the rubber ball will bounce the highest because it has the greatest elasticity. When the rubber ball hits the ground it gets compressed, or squished, and because it is very elastic, it quickly returns to its original shape.
Why do the balls react differently when dropped together?
Both the basketball and the tennis ball are moving at the same speed right before they hit the ground. This means they both have some amount of kinetic energy, but the basketball has more due to its larger mass. After the collision, the basketball has a very low speed and thus very little kinetic energy.
Why does a ball bounce higher when dropped higher?
Because the ball is softer than the floor, it does most of the denting and stores most of the energy. ... When you drop a ball from a greater height, it has more kinetic energy just before it hits the floor and stores more energy during the bounce—it dents farther as it comes to a stop.
What is the relationship between drop height and bounce height?
The relationship between drop height and bounce height is only linear for small drop heights . Once a ball reaches a certain height, the bounce height will begin to level off because the ball will reach its terminal velocity.
How much energy is lost when a ball bounces?
For example, if a ball bounces 80% of its height on each bounce, then the ball is losing 20% of its energy on each bounce. The time of each bounce is about 90% of the time of the previous bounce, the ball slows down about 10% each bounce, and about 10% of the linear momentum
Which ball falls faster?
Heaver objects fall faster . If you drop a heavy and light object together, the heavy one will get to the ground first. This is trick question. I remember in physics that everything falls the same.
Do heavier balls bounce higher?
Both balls will fall at a similar speed, but because kinetic energy is proportional to the mass of the object, the heavy ball reaches Earth with more energy. It will not necessarily rebound higher , as it also needs more kinetic energy to reach a specific height again.
Does the surface you bounce the ball on matter in bounce height?
Did the basketball bounce much higher on the harder surface compared with the softer one? One factor that can affect the basketball’s collision with the ground is the type of surface the ball collides with. When a basketball bounces off of a surface, some of its energy is absorbed by that surface.
What affects the bounce height of a ball?
The combination of the material properties of a ball (surface textures, actual materials, amount of air, hardness/ softness, and so on) affects the height of its bounce.
Why does a ball stop bouncing?
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. ... This is because the basketball had an inelastic collision with the ground . After a few bounces, it stops bouncing completely.
Why does a ball not bounce back to its original height?
The reason it doesn’t bounce higher than where it started is simple: some of the ball’s energy is lost as heat when it bounces , so it doesn’t have as much going up as it did coming down. Knowing that, you might figure that a ball could never bounce higher than the height from which is was dropped.
Does height affect energy loss?
There’s a lot more air friction on the ball when it is dropped from a larger height, so it will lose more energy and won’t be able to bounce as high. ... Therefore, if a ball is dropped from a larger height, its velocity will be much higher upon impact, which creates more friction and decreases the ball’s energy even more.
What is the height of the next bounce?
The maximum height it reaches after its first bounce is 70 percent of 200 feet, or 140 feet . After the second bounce, it reaches a height of 70 percent of 140 feet, or 98 feet. In similar fashion, the ball continues to rebound to a height that is 70 percent of the highest point of the previous bounce.
