With the friction on, the minimum height I can place the skater so that he makes it all the way around the loop is 6 meters. This is about a meter higher than if the friction were turned off. The “lost” energy is going towards thermal energy. This means in real life that heat is being created due to the friction.

## What type of energy does the skater have?

As previously discussed, the skater has the most **potential energy** at the top of the slope. As the skater moves down the slope, his potential energy decreases as the kinetic energy increases.

## What type of energy does the skater have at the lowest point on the track?

AnswerThe **skater has** the **lowest** amount of kinetic **energy** at the top of the **track** and **lowest** potential **energy** at the **lowest point** of the **track**. If there is friction then when the **skater** comes to rest there is no kinetic **energy** just potential and thermal.

## What kind of energy is the energy that a skater that is on top of a hill getting ready to come down have?

The skier possesses gravitational potential energy at the top of a slope, which transforms into **kinetic energy** as he moves down the slope.

## What happens to the potential energy as the skater goes down what happens to the kinetic energy as the skater goes down what happens to the total energy as the skater goes down?

As the skateboarder goes down the ramp, **potential energy is converted to kinetic energy**. Because of friction, some of the energy in the system is converted to heat energy. Once the kinetic energy is converted to heat, the energy cannot be converted back to the potential or kinetic energy in the system.

## At what position is the kinetic energy of the skater the highest?

This graph shows the changing KE for the skateboarder. At the top of the ramp, before he starts moving downward, the skateboarder has zero KE, due entirely to the fact that he is not moving. **At the bottom of the ramp**, the skateboarder has maximum KE because he is moving at the fastest speed.

## What kind of energy does a skater have that causes him to permanently slow down?

The mass of the skateboarder causes him to have less **kinetic energy** than potential energy so he slows down.

## At which point is potential energy greatest?

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.

## Is a rock at the edge of a cliff kinetic or potential energy?

A rock at the edge of a cliff has **‘kinetic’ energy** because of its position. Friction causes some mechanical energy to change to ‘thermal’ energy. Energy that is stored is ‘kinetic’ energy.

## When traveling twice as fast your kinetic energy is increased?

9.5 Kinetic Energy

If the speed of an object is doubled, its kinetic **energy** is quadrupled (2^{2} = 4). It takes four times the work to double the speed. An object moving twice as fast takes four times as much work to stop and will take four times as much distance to stop.

## Which object has the least amount of kinetic energy?

Kinetic energy is made when something is in motion. **A bicycle locked to a bike rack** has the least amount of kinetic energy.

## How do you get potential energy?

Simplified, this formula can be written as: **Potential Energy = mgh**, where m is the mass, measured in kilograms; g is the acceleration due to gravity (9.8 m/s^2 at the surface of the Earth); and h is the height, measured in meters.