Directions. Choose the letter of the best answer.
1. What is the energy of a motorcycle moving slowly at the top of a hill?
A. entirely kinetic
B. entirely potential
C. entirely gravitational
D. both kinetic and potential
2. Which event is explained in the sequence of energy changes shown in the diagram below?
A. a headlight is on
B. a turbine spins
C. electric current powers a flat iron
D. gasoline burns to run a jeepney
3. In the Agus VI Hydroelectric Power (HEP) Plant, which energy transformation takes place?
A. electrical energy mechanical energy electrical energy.
B. gravitational potential energy kinetic energy electrical energy
C. heat mechanical energy electrical energy.
D. nuclear energy heat electrical energy
4. Which event does NOT describe potential energy being changed into kinetic energy?
A. A box sliding down a ramp.
B. A mango falling from a crate.
C. A pen spring being compressed.
D. A stretched rubber band got loosened.
5. Which event illustrates the direct transformation of potential to kinetic energy?
A. A basketball player catches a flying ball.
B. A Kalesa moves from rest.
C. Kathy’s arrow is released from its bow.
D. The spring mechanism of a toy is rotated until it locked.
6. Which sequence of energy transformation best describes what happens when you switch on your
battery-run radio?
A. Mechanical Energy Electrical Energy Sound Energy
B. Mechanical Energy Chemical Energy Sound Energy
C. Chemical Energy Electrical Energy Sound Energy
D. Chemical Energy Mechanical Energy Sound Energy
7. Which among the forms of energy is considered a potential energy?
A. chemical energy
B. radiant energy
C. sound energy
D. thermal energy
8. Which of the following happens to a coconut that falls freely?
A. Loses potential energy and gains kinetic energy.
B. Loses both potential energy and kinetic energy.
C. Gains potential energy and loses kinetic energy.
D. Gains both potential energy and kinetic energy.
9. A torchlight fell from a watch tower. The potential energy of the torchlight at the highest point
compared to its kinetic energy at the lowest point is _______
A. lesser.
B. equal.
C. greater.
D. not related.
10. The potential energy of a 1-kg object on top of a hill is 18 J. What is its velocity in m/s just before it
hits the bottom of the hill?
A. 36