Tennis balls: Must rebound approximately 111cm when dropped from 200 cm. Soccer balls: Must rebound approximately 120cm when dropped form 200cm onto a steel plate. Basketballs: Must rebound approximately 53.5 inches when dropped from 72 inches onto a wooden floor.
How do you predict how high a ball will bounce?
Between the first and second bounces, the height can be expressed as h = 140 − 16(t − 6.49) 2 , 3.54 ≤ t < 9.45. The 6.49 is when the highest point is achieved (halfway between the two bounces), and the 9.45 seconds is derived from adding 3.54 seconds to the time between the first and second bounces.
How high should a new golf ball bounce?
The ball should be dropped from a height of 12 inches , so a second person should measure the height of the golf ball (from the bottom of the fall to the ground) BEFORE the first person drops it. A spotter should estimate (i.e. mark in the “air”) the bounce height of the golf ball on the first bounce.
How do you calculate rebound ratio?
the mathematical relationship between how many . times a ball has bounced and the height of each . bounce .
How high will a basketball bounce on different surfaces?
For example, depending on the type of basketball and surface, you may have seen the ball bounce about 15 inches high on carpet and about 25 inches high on concrete .
What golf ball bounces the highest?
In my science fair experiment, the golf ball overall was the ball that bounced the highest.
What is a rebound ratio in math?
the mathematical relationship between how many . times a ball has bounced and the height of each . bounce .
How do you measure rebound height?
The test is conducted with an electromagnetic or vacuum release mechanism which releases a soccer ball from a height of 2 meters. From that the height of the rebound is measured by recording the sound of the first and second bounce . The time between the first and second bounce is measured.
How many times will a ball bounce before coming to rest?
How many times will a ball bounce before coming to rest? The series of heights is infinite , so before stopping, the ball must bounce an infinite number of times. #1.
Why do balls not bounce on grass?
Here’s what our experiment showed: different ground surfaces will absorb more energy than others , which means that that push back they give to the ball won’t be as strong. ... A soft surface, like grass or carpet, absorbs more energy from the fall, so there’s less left to push the ball back up, and it bounces pretty badly.
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.
What factors affect 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.
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.
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.
