LET Reviewer - General Education (SCIENCE - Physical Science Part 1)

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Direction: Select the letter of the best answer.

1. _______ is the ability, capacity or capability of a physical system to do work.

a. Energy

b. Heat

c. Effort

d. Kinetic Energy

Answer: a. Energy

2.Which of the following is not an example of kinetic energy?

a. waterfall

b. moving cars

c. ticking of a clock

d. a drawn bow

Answer: d. a drawn bow

3. The energy levels of an atom are occupied by _______.

a. Protons

b. Electrons

c. Neutrons

d. Cell

Answer: b. Neutrons

4. In electrical energy, what happens when a force is applied?

a. Some of the electrons move.

b. Some of the protons move.

c. All of the electrons move.

d. Both protons and electrons move.

Answer: a. Some of the electrons move.

5. Electrical charges moving through a wire is called ________.

a. electricity

b. lightning

c. amperes

d. conduction

Answer: a. electricity

6. Which of the following describes mechanical energy?

a. Turning a fluorescent light on

b. A cup of hot chocolate cooling down

c. The heat emitted from a campfire

d. A massive ball of a demolition machine striking a structure

Answer: d. A massive ball of a demolition machine striking a structure

7. In which situation will lose or acquire heat by radiation?

a. Swimming in cold waters

b. Hiding in a tree shade

c. Lying on hot rock

d. Sun bathing

Answer: d. Sun bathing

8. Sun is the primary source of _______ energy.

a. chemical

b. physical

c. solar

d. potential

Answer: c. solar

9. Heat transfer between two substances that are in contact is called _______.

a. conduction

b. convection

c. thermal energy

d. radiation

Answer: a. conduction

10. How does radiant energy travels?

a. Through wires

b. In transverse waves

c. By separation of uranium atoms

d. By lifting something

Answer: b. In transverse waves

11. Kelly ran across the room and bumped into her brother, pushing him to the floor. The statement describes the _______.

a. Law of Acceleration

b. Law of Gravity

c. Law of Attraction

d. Law of Conservation

Answer: d. Law of Conservation

12. _______ happens when energy is constantly changing from one form to another.

a. Law of Conservation

b. Energy transformation

c. Chemical Energy

d. Thermal Energy

Answer: b. Energy transformation

13. ________ is the process of dividing or splitting an atom into 2 smaller atoms and releasing neutrons and lots of heat.

a. Fusion

b. Fission

c. Radiation

d. Gamma decay

Answer: b. fission

14. A natural gas stove converts chemical energy from burning into _______ used to cook food.

a. electromagnetic energy

b. electrical energy

c. thermal energy

d. mechanical energy

Answer: c. thermal energy

15. A toaster transforms _______into thermal energy.

a. electrical energy

b. nuclear energy

c. gravitational energy

d. radiant energy

Answer: a. electrical energy

16. Our bodies convert _______ from food into mechanical and electrical energy to allow us to move.

a. nuclear energy

b. electrical energy

c. electromagnetic energy

d. chemical energy

Answer: d. chemical energy

17. _______ the energy transferred between objects that are at different temperatures.

a. Friction

b. Heat

c. Potential energy

d. Kinetic energy

Answer: b. Heat

18. A phone ringing is an example of _______.

a. solar energy

b. nuclear energy

c. sound energy

d. radiant energy

Answer: c. sound energy

19. Which of the following is not an example of renewable energy?

a. Petroleum

b. Geothermal energy

c. Hydropower

d. Wind energy

Answer: a. Petroleum

20. _______ is a gaseous fossil fuel formed from marine organisms that is often found above a layer of oil or in shale rock.

a. Natural Gas

b. Coal

c. Reserves

d. Crude oil

Answer: a. Natural Gas

21. Which of the following best describes light?

a. It is an electromagnetic radiation and has no mass.

b. It is neither created nor destroyed.

c. It is an electric charge that has accumulated on an object.

d. It possessed both kinetic and potential energy.

Answer: a. It is an electromagnetic radiation and has no mass.

22. _______ is the process of transferring the light of energy to particles of matter.

a. conduction

b. conversion

c. absorption

d. refraction

Answer: c. absorption

23. It refers to the combination of kinetic and potential energy of a moving object.

a. electromagnetic energy

b. electrical energy

c. thermal energy

d. mechanical energy

Answer: d. mechanical energy

24. It is the unit of measurement for sound based on human hearing.

a. Ampere

b. Decibel

c. Newton

d. Candela

Answer: b. Decibel

25. _______ is an energy source that uses the heat below the Earth's surface to produce steam to spin a turbine.

a. Geothermal

b. Hydroelectric

c. Biomass

d. Fossil fuels

Answer: a. Geothermal

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Like this set of practice questions? Try our other practice questions for General Education - Science below:

Biological Science Part 1 – https://bit.ly/2Ayf3g7

Physical Science Part 2 - https://bit.ly/2v1Rsz5

Earth Science Part 1 - https://bit.ly/2L5BgSu