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- 1. Multiple Choice
Which among the forms of energy is considered a potential energy?
chemical energy
radiant energy
sound energy
thermal energy
- 2. Multiple Choice
Which of the following happens to a coconut that falls freely?
loses potential energy and gains kinetic energy
loses both potential and kinetic energy
gains potential energy and loses kinetic energy
gains both potential energy and kinetic energy
- 3. Multiple Choice
What is the unit of potenial and kinetic energy?
E
N
J
kg.m/s
- 4. Multiple Choice
Which event illustrates the direct transformation of potential to kinetic energy?
A volleyball player blocks an incoming ball.
A sleeping cow stirs awake
The wide-open spring door closes slowly
The spring of a broken toy shoots up.
- 5. Multiple Choice
It is equal to the difference between the heat taken in by the system and the work done by the system.
Potential energy
Kinetic energy
Mechanical Energy
Internal energy
- 6. Multiple Choice
How does water from the deep well move upward?
It occurs naturally.
It uses water heat pump.
It is a spontaneous process.
It flows from higher temperature to a cooler temperature.
- 7. Multiple Choice
Heat engine converts mechanical energy to thermal energy.
TRUE
FALSE
- 8. Multiple Choice
Mang Fermin, a carpenter, is planning a piece of wood with his planar. After a few minutes, he observed that it is hot. Is there an evidence of heat transfer?
There is no evidence.
Yes, hotness means there is an increase in temperature.
Yes, hotness means there is a decrease in the temperature
No, hotness is not related to a change in temperature.
- 9. Multiple Choice
Which of the following is not included in the refrigeration cycle?
compression
evaporation
precipitation
expansion
- 10. Multiple Choice
While a gas does 400 J of work on its surroundings, 900 J of heat is added to the gas. What is the change in the internal energy of the gas?
500 J
400 J
900 J
1300 J
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