When a rubber ball hits a surface, it compresses and deforms before returning to its original shape . ... Of course, the bouncy advantage is lost if a glass or steel ball is hurled with force because glass will break and dense steel will have enough momentum to become a weapon.
What makes balls bounce higher?
Explanation: 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.
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.
What makes a ball bouncy?
Strange as it may seem, a ball bounces off the floor because the floor pushes it up ! ... When you drop a ball, gravity pulls it toward the floor. The ball gains energy of motion, known as kinetic energy. When the ball hits the floor and stops, that energy has to go somewhere.
Can a ball bounce forever?
The law of conservation of energy implies that a bouncing ball will bounce forever . Of course, it does not. When you drop it on the floor, it changes some of its energy into other forms, such as heat, each time it hits the floor.
How high will a tennis ball bounce?
Under our test conditions of 73 degrees, balls dropped from 100 inches onto a granite surface bounced between 52.93 and 58.43 inches. The ITF requirements are for a bounce between 53 and 58 inches at 69 degrees . Surprisingly, most balls bounced higher after the durability test than before — some more than 1.5% higher.
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.
Does mass affect bounce height?
If the mass of the ball increases than the height the ball bounces will increase because the more mass an object has the more energy that gets build up when the ball gets released and makes the ball go higher.
Why does the height of a bouncing ball decreases?
Since the height to which the ball will bounce is directly proportional to its energy (barring effects of air friction), with a coefficient of restitution of less than one the ball will bounce less and less high.
Why is rubber so bouncy?
When a rubber ball hits something, it absorbs energy and releases energy really fast , Zheng said. ... When it hits something, it stops, and the kinetic energy is stored inside the ball as internal energy. Then it can quickly convert the internal energy back into kinetic energy which allows the ball to bounce back.
What can you use instead of Borax to make a bouncy ball?
Most bouncy balls are made with Borax, but it is dangerous to ingest and can irritate your skin. To make a bouncy ball without using Borax, you can use baking soda, glue, water, and food coloring or cornstarch, water, and food coloring .
Why do balls eventually stop?
Friction – as the ball rolls, the ball loses its energy to heat and sound. As the energy is lost, the ball slows down and eventually stops. ... A rolling ball stops because of friction.” ScienceLine.
Why dont bouncy balls bounce forever?
This elastic potential energy is why the ball is able to bounce, or rebound. After the ball rebounds, the elastic potential energy is transformed into kinetic energy, but it will never possess as much kinetic energy as during its original fall. The ball will never be able to rebound to its original height.
What kind of ball does not bounce?
The ball that doesn’t bounce is made of a special kind of rubber, called butyl rubber . Butyl rubber is synthetic, or manmade, rubber that absorbs the kinetic energy from the ball falling. Butyl rubber used in athletic shoes can help absorb the impact of your feet as they hit the ground.
How high does a tennis ball bounce when dropped from 5 feet?
According to the ITF rules a “valid” tennis ball should bounce to between 135 cm and 147 cm when dropped on a concrete floor from a height of 254 cm (53-57 in from 100 in). This means that the ball should reach between 53% and 57% of the drop height when bouncing.
