How does the height you drop a ball from affect the percent energy lost when the ball bounces?
This denting extracts energy from the ball’s motion and stores much of it in the elastic surfaces of the floor and ball. 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.
Is the height of a balls bounce affected by the height from which the ball is dropped variables?
Hypothesis: If a tennis ball is dropped from a specific height then the ball will bounce to the same height. Independent Variable: The height from which the ball is dropped….Data Table 2: Average Bounce Height at Each Height:
| Drop Height (cm) | Average Bounce Height (cm) |
|---|---|
| 80 | 40. |
| 100 | 51 |
Why does the height of a bouncing ball decrease after each bounce?
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. When the ball hits the floor, its center of mass needs to be decelerated.
Why do balls eventually 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 doesn’t a ball bounce back to its original height?
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 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.
Why is it important to drop the ball from the same height three times?
When all three balls are dropped from the same height, the rubber ball will bounce the highest because it has the greatest elasticity. This is because the higher the starting height of the ball, the higher the ball’s potential energy. An object has potential energy because of its position.
Does a ball of glass bounce higher than rubber?
When you drop a ball on a surface, it compresses and squashes slightly, before snapping back to its original shape. In addition, a solid glass ball will also bounce higher than a rubber ball, but then the trick is finding a surface hard enough to make the ball bounce, but not hard enough to break it!
How were you able to increase the amount of potential energy the ball had?
When you lift the ball, you are doing work to increase its gravitational potential energy. When you then release the ball, gravitational energy is transformed into kinetic energy as the ball falls. When the ball hits the floor, the ball’s shape changes as it flattens against the floor.
What increases potential energy?
The heavier the object and the higher it is above the ground, the more gravitational potential energy it holds. Gravitational potential energy increases as weight and height increases. Potential energy is energy that is stored in an object or substance.
What are two ways to increase potential energy?
What are two ways to increase potential energy? The larger the weight of an object the more potential energy it has and the further the object from the Earth’s surface the more potential energy it has. What type of energy is the greatest at the top of a swing’s path? Energy stored by things that stretch or compress.
How Does height affect potential energy?
Since the gravitational potential energy of an object is directly proportional to its height above the zero position, a doubling of the height will result in a doubling of the gravitational potential energy. A tripling of the height will result in a tripling of the gravitational potential energy.
Does potential energy decrease with height?
The higher up an object is the greater its gravitational potential energy. As most of this GPE gets changed into kinetic energy, the higher up the object starts from the faster it will be falling when it hits the ground. So a change in gravitational potential energy depends on the height an object moves through.
Can an object have zero potential energy?
The potential energy U of a body at some point x is defined to be the work done on the object by an extra, imposed force to move it from a reference position to its current position. The reference point is called the “zero point” of potential energy as the potential energy will be zero there by definition.
Does kinetic energy increase with height?
As the height increases, there is an increase in the gravitational potential energy P and a decrease in the kinetic energy K. The kinetic energy K is inversely proportional to the height of the object.
Does speed affect kinetic energy?
It turns out that an object’s kinetic energy increases as the square of its speed. A car moving 40 mph has four times as much kinetic energy as one moving 20 mph, while at 60 mph a car carries nine times as much kinetic energy as at 20 mph. Thus a modest increase in speed can cause a large increase in kinetic energy.
How do you find kinetic energy at maximum height?
Therefore, at the highest or at maximum height, the net velocity is u= vocosθ. So, we can say that at the maximum height, the kinetic energy is minimum as the vertical velocity is zero. Minimum kinetic energy = 12m(v0cosθ)2 . So, the correct answer is “Option D”.
How do you find the maximum kinetic energy?
This value is the maximum possible kinetic energy of the photoelectron. The equation, which Einstein determined, says (electron’s maximum kinetic energy) = (energy of the incident light energy packet) minus (the work function). For the example, the electron’s maximum kinetic energy is: 2.99 eV – 2.75 eV = 0.24 eV.
What is the maximum kinetic energy of photoelectrons?
What is the maximum kinetic energy of the ejected photoelectrons? A 400-nm violet light ejects photoelectrons with a maximum kinetic energy of 0.860 eV from sodium photoelectrode.
Why do photoelectrons have a maximum kinetic energy?
The two factors affecting maximum kinetic energy of photoelectrons are the frequency of the incident radiation and the material on the surface. As shown in the graph below, electron energy increases with frequency in a simple linear manner above the threshold.
At what point is the kinetic energy at a maximum?
When the kinetic energy is maximum, the potential energy is zero. This occurs when the velocity is maximum and the mass is at the equilibrium position. The potential energy is maximum when the speed is zero. The total energy is the sum of the kinetic energy plus the potential energy and it is constant.
At what position is the potential energy maximum?
Since kinetic energy can never be negative, there is a maximum potential energy and a maximum height, which an object with the given total energy cannot exceed: K=E−U≥0,U≤E.
Which point has the greatest potential energy?
Potential energy is greatest when the most energy is stored. This could be when an object reaches its highest point in the air before falling, a rollercoaster just before it drops, or when a rubber band is stretched as far back as possible before it snaps. Potential energy is then converted to kinetic energy.
Which state of matter has the highest kinetic energy?
gaseous
What is the least potential energy?
When an object has the LEAST potential energy is when it has the MOST kinetic energy.
Which ball has the least potential energy?
Ball C
When a pendulum swings at which point is potential and kinetic energy equal?
Potential energy is converted to kinetic energy, which is the energy exerted by a moving object. An active pendulum has the most kinetic energy at the lowest point of its swing when the weight is moving fastest.