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Kinetic Energy Factors - Practice

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In the kinetic energy experiment, what do we observe to determine the size of the ball's kinetic energy?

Kinetic Energy Factors - Practice - Quiz Questions

Test your understanding of the relationship between kinetic energy, mass, and velocity through the following exercises.

1. In the kinetic energy experiment, what do we observe to determine the size of the ball's kinetic energy?

A. The speed of the ball when it hits the block
B. The distance the block slides on the horizontal board
C. The height from which the ball rolls down
D. The mass of the wood block

2. When the ball rolls down from different heights on the slope, it is to change the ball's:

A. Mass
B. Kinetic Energy
C. Velocity
D. Inertia

3. If an object's velocity doubles while its mass remains constant, its kinetic energy becomes:

A. 2 times larger
B. 4 times larger
C. 8 times larger
D. Unchanged

4. When investigating the 'relationship between kinetic energy and mass', which variable should be kept constant?

A. The mass of the ball
B. The mass of the block
C. The height of the ball (i.e., its speed at impact)
D. The sliding distance of the block

5. Which of the following statements is correct?

A. An object with a high speed must have large kinetic energy
B. An object with a large mass must have large kinetic energy
C. Kinetic energy is determined by both mass and velocity
D. An object stationary on the ground also has kinetic energy

6. For a sprinkler truck driving at a constant speed while sprinkling water, its kinetic energy will:

A. Increase
B. Decrease
C. Stay the same
D. Cannot be determined

7. True or False: If the horizontal board were perfectly frictionless, we could still judge the amount of kinetic energy by the sliding distance.

True
False

8. A 10g bullet flies at 800m/s, and a 1000kg car travels at 2m/s. Which has greater kinetic energy?

A. Bullet
B. Car
C. Equal
D. Cannot compare

9. A car accelerates from 30km/h to 60km/h. How many times does its kinetic energy become?

A. 2 times
B. 4 times
C. 8 times
D. 9 times