Practice Energy Quiz
1. Two identical balls are rolling down a hill. Ball 2 is rolling faster than ball 1.
Which ball has more motion energy?
2. A girl is sitting in a chair and throws a ball. After she throws the ball, she
watches the ball move through the air. While the ball is moving through the
air, does the girl or the ball have more motion energy (kinetic energy) and
why?
3. A boy and a girl are sledding down a hill. The boy and the girl weigh the
same, and they are using sleds that weigh the same. If the boy and girl are
sledding at the same speed, which child has more motion energy (kinetic
energy)?
4. A student stretches a rubber band and then lets it go. The rubber band flies
across the room. Which of the following describes what must have happened
in terms of the energy of the rubber band?
5. Imagine a ball on a track where no energy is transferred between the ball and
the track or between the ball and the air around it. The ball starts from rest at
the position labeled Start.
Will the ball have enough energy to go over the hill on the track and why?
(Remember that no energy is transferred between the ball and the track or
between the ball and the air around it.)
6. Which of the following has kinetic energy?
A. A skiier about to push off
B. A compressed coil
C. A jack in the box before you let go
D. A tumbling cheerleader
7. A boy is riding his skateboard down a hill without pushing off the ground.
He speeds up as he goes down the hill and the wheels get a little warmer.
What energy transformations happen while she is going down the hill.
A. Motion energy to gravitational potential to thermal.
B. Gravitational potential to motion and thermal.
C. Gravitational potential to motion.
D. No energy transformations occur.
8. During photosynthesis radiant energy is transformed to ______________
energy.
A. Electrical
B. Nuclear
C. Heat
D. Chemical
9. Which of the following is a transformation from chemical to
Motion energy.
A. Food is digested. The energy in the food is used to move arms.
B. A person falls from a chair.
C. A person sits still.
D. A battery is used to heat a blanket.
10. Which of the following shows chemical energy?
A. Energy of motion
B. KE+ PE
C. Energy stored by fossil fuels such as coal
D. Energy stored in the nucleus of an atom
11. What is nuclear energy?
A. Energy of motion
B. KE+ PE
C. Energy stored by fossil fuels such as coal
D. Energy stored in the nucleus of an atom
12. A student wondered: Does where you practice affect how you play in a game?
The independent variable is:
A. Calories
B. Gender
C. Where you practice
D. How you play
13. A student wondered: Does where practice affect how you play in a game?
The dependent variable is:
A. Calories
B. How you play
C. Where you practice
D. Age
14. Kinetic or Potential?
Radiant Energy:
Chemical Energy:
Thermal Energy:
Gravitational Potential Energy:
Nuclear Energy:
Sound Energy:
Mechanical Energy:
Electrical Energy:
15.
Which letter represents the position where the pendulum has the greatest
potential energy?
Which letter represents the position where the pendulum has the greatest
kinetic energy?
Which two letters represent the position where the pendulum has both
potential and kinetic?
Explain why the above pendulum will eventually come to a stop if you don't
continue to push it.
What happened to the potential energy you started with?