Friction and potential Energy QUiz

1. What is the definition for potential energy? A. Energy of motion B. Stored energy C. Mechanical energy D. Energy that is converted

2. What is the definition for kinetic energy? A. Energy of motion B. Stored energy C. Mechanical energy D. Energy that is converted

3. The type of friction needed to bring an object to a stop once it’s moving. A. Sticky B. Static C. Kinetic D. Rolling

4. In order to get something moving, _______ friction needs to be overcome. A. Sticky B. Static C. Rolling D. Kinetic

5. Playing shuffleboard, what role does the salt have in the game?

6. A roller coaster is just getting to the top of a hill, it has __________ potential energy. A. Elastic B. Mechanical C. Chemical D. Gravitational

7. Give an example of something that has chemical potential energy.

8. A bow and arrow is an example of what type of potential energy? A. Chemical B. Stretchable C. Elastic D. Gravitational

9. Which of the following scenarios would have greater energy? A roller coaster sitting on a 30 m high hill and weighs 900 kg. A 125 kg man standing on top of a 300 m high cliff.

10. A 1500 n car is driving down the road at 15 m/s. What type of energy does the car have? Calculate the energy used in the scenario.

11. A 40 kg kid is swinging and at the top of the swing, the highest the kid gets is 8 m. What type of energy does the kid have at the top of the swing? Calculate how much energy the kid has.

12. As a roller coaster comes down the first hill on a ride, what happens to the kinetic energy? What happens to the potential energy? A. Kinetic decreases, potential increases. B. Potential decreases, kinetic increase. C. Kinetic stays the same, potential increases. D. Potential stays the same, kinetic increases.