Practice Test: Energy, Electricity & Waves · Practice Test: Energy, Electricity & Waves True/False Indicate whether the statement is true or false. The Only Reason to Learn Algebra

DO NOT YOU DARE WRITE ON THIS TEST

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Practice Test: Energy, Electricity & Waves

True/False

Indicate whether the statement is true or false.

The Only Reason to Learn Algebra is to do Physics

1. Power is the rate at which work is done.

a. True

b. False

2. A power lifter does work holding a barbell weighing nearly 2300N above his head.

a. True

b. False

3. When you rise on a playground swing, your potential energy is greatest at the top of each

swing.

a. True

b. False

4. An object’s potential energy is based on how fast it is moving.

a. True

b. False

Compare, contrast and review the heat transfer processes

5. Radiation is the transfer of energy in the form of particles.

a. True

b. False

6. Heat is a measure of the average kinetic energy of all the particles in an object.

a. True

b. False

Wave anatomy, properties and examples

7. Sound waves do NOT carry energy.a. True

b. False


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8. Mechanical waves require a medium through which to travel.a. True

b. False

9. Waves is which the particles of medium move perpendicular to the direction of the wave

are longitudinal waves.a. True

b. False

10. The lowest point on a compression wave is the trough.

a. True

b. False

Matching

Wave anatomy, properties and examples

Match the type of wave to its definition, description or example.

You may use an answer more than once, not at all or both at the same time.

a. Transverse b. Longitudinal

11. Compressions

12. Rarefactions

13. Sound

14. Carries Energy

15. Troughs

16. Crests

17. Matter? Nope. Don’t need it.

18. Light

19. MUST have a medium

20. Electromagnetic


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“Track” Energy Transformations

Energy is conserved but transforms

Follow an energy source as it transforms and transfers

Identify the various forms energy takes

Match the energy transformations with their examples. You might use an answer more than

once or not at all.

a. Chemical ⇒ Heat + Light

b. Chemical ⇒ Electrical + Heat

c. Mechanical ⇒ Light + Heat

d. Chemical ⇒ Electrical ⇒ Kinetic

e. Electrical ⇒ Kinetic

21. Camp fire

22. Flashlight

23. Ceiling fan

24. iPhone

25. Match

Multiple Choice

Identify the choice that best completes the statement or answers the question.

The Only Reason to Learn Algebra is to do Physics

26. If you push an object twice as far while applying the same force, you do -

a. twice as much work.

b. four times as much work.

c. the same amount of work.

27. A job is done slowly, while an identical job is done quickly. Both jobs require the same amount

of work, but different amounts of -

a. force.

b. power.

c. energy.

d. friction.

e. Joules


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28. In which of the following situations do your arms do work on books?

a. holding a heavy stack of books while standing

b. carrying a heavy stack of books

c. dropping a stack of books onto a table

d. picking up a pile of books from the floor

29. At what point in its motion is the gravitational potential energy of the ball at its maximum?

a. When it is first hit

b. When it lands

c. At the top of the arc

d. Halfway down the arc

e. Halfway up the arc

30. An object is raised above the ground gaining a certain amount of potential energy. If the same

object is raised twice as high, it gains -

a. twice as much energy.

b. half as much energy.

c. no energy.

d. ten times the energy.

e. half as much energy as gravity.


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“Track” Energy Transformations Energy is conserved but transformed Follow an energy source as it transforms and transfers Identify the various forms energy takes

31. The diagram below represents an ideal (frictionless) pendulum. As the pendulum swings from

position A to position B, what happens to the total energy?

a. Increases

b. Decreases

c. Stays the same

32. At which point is PE being transferred into KE?

a. F

b. G

c. H

d. K

e. J


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33. A student is going to compress the object shown in the diagram.

Which form of energy will the object gain when it is compressed?

a. chemical

b. electrical

c. potential

d. electromagnetic


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34. When a hand-held fan is turned on, the blades spin. Which diagram shows the energy

conversion that is required to make the fan work?

a.

b.

c.

d.


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35. When the slingshot is held in position as in the diagram, what kind of energy is present?

a. kinetic energy

b. potential energy

c. electrical energy

d. electromagnetic energy

36. The diagram below shows the flight of a thrown object. What happens to the PE of the object

from point A to point B?

a. Increases

b. Decreases

c. Stays the same


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Compare, contrast and review the heat transfer processes

37. The inside surface of a vacuum bottle (thermos or insulated cup) is coated with shiny

aluminum to prevent heat loss by -

a. combustion.

b. radiation.

c. conduction.

d. convection.

38. Through which of the following will convection most likely occur?

a. liquids and gases

b. solids and liquids

c. solids

d. solids and gases

39. Inside a room, the air is often warmer near the ceiling than near the floor. Which of the

following accounts for this difference in temperature?

a. radiation

b. insulation

c. convection

d. conduction


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40. As Wilma holds a pan over a fire, the water begins to boil, as shown in the figure below.

Which process is indicated by the letter Z?

a. radiation

b. insulation

c. convection

d. conduction

41. Which of the following is the transfer of energy as heat by the movement of a liquid or gas?

a. conduction

b. convection

c. emission

d. radiation


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42. The thermal energy of the iron in room D is transferred to the clothes by -

a. radiation.

b. convection.

c. conduction.

43. The thermal energy is transferred to the sunbather in room B primarily by -

a. radiation.

b. convection.

c. conduction.

ID: A

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Practice Test: Energy, Electricity & Waves

Answer Section

TRUE/FALSE

1. ANS: T PTS: 1

2. ANS: F PTS: 1

3. ANS: T PTS: 1

4. ANS: F PTS: 1

5. ANS: F PTS: 1 DIF: B OBJ: 5/2

6. ANS: F PTS: 1 DIF: A OBJ: 1/1

7. ANS: F PTS: 1

8. ANS: T PTS: 1

9. ANS: F PTS: 1

10. ANS: F PTS: 1

MATCHING

11. ANS: B PTS: 1

12. ANS: B PTS: 1

13. ANS: B PTS: 1

14. ANS: A PTS: 1

15. ANS: A PTS: 1

16. ANS: A PTS: 1

17. ANS: A PTS: 1

18. ANS: A PTS: 1

19. ANS: B PTS: 1

20. ANS: A PTS: 1

21. ANS: A PTS: 1

NOT: Fire is "always" chemical and "always" radiant. Heat and light are the same thing.

22. ANS: B PTS: 1

23. ANS: E PTS: 1

24. ANS: B PTS: 1

25. ANS: A PTS: 1

MULTIPLE CHOICE

26. ANS: A PTS: 1

27. ANS: B PTS: 1

28. ANS: D PTS: 1

ID: A

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29. ANS: C PTS: 1

30. ANS: A PTS: 1

31. ANS: C PTS: 1

32. ANS: B PTS: 1

33. ANS: C

A is incorrect because chemical energy is stored in the bonds that hold matter together, and this form of energy

will not change during compression.

B is incorrect because electrical charges are not transferred to the object during compression.

C is correct because the spring gains potential energy during compression, which is part of its total mechanical

energy.

D is incorrect because electromagnetic energy is transferred as waves, such as light.

PTS: 1

DIF: Cognitive Complexity: Moderate | Student Level: Average | Depth of Knowledge 2: Basic

Application of Skill | Bloom's Traditional: Comprehension | Bloom's Revised: Understanding

REF: 775b6100-fda6-11df-8e11-001e33aa91d2 OBJ: G6_PC_75191_IntrotoEnergy

TOP: Energy; Forms: Provide examples of different forms of energy.

KEY: potential energy | elastic energy | spring

MSC: moduleH_Module Review | Uses visual element | Nature of Science

34. ANS: D

A is incorrect because the battery converts chemical energy to electrical energy.

B is incorrect because the battery converts chemical energy to electrical energy.

C is incorrect because the spinning blades have kinetic energy.

D is correct because the battery converts chemical energy to electrical energy, and the electrical energy converts to

kinetic energy, which makes the blades spin.

PTS: 1


Application of Skill | Bloom's Traditional: Analysis | Bloom's Revised: Analyzing

REF: 775f58a0-fda6-11df-8e11-001e33aa91d2 OBJ: G6_PC_75191_IntrotoEnergy

TOP: Law of Conservation of Energy: Provide examples of energy being converted from one form to

another.

KEY: energy | conversion | energy conversion | kinetic energy | chemical energy | electrical energy

| fan MSC: Uses visual element | moduleH_Module Review | Nature of Science

ID: A

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35. ANS: B

A is incorrect because kinetic energy is the energy of motion.

B is correct because potential energy is the energy stored within the slingshot as a result of the position of the

band.

C is incorrect because no charges are passing through the band.

D is incorrect because there is no light released from the slingshot.

PTS: 1

DIF: Cognitive Complexity: Low | Student Level: Basic | Depth of Knowledge 2: Basic Application of

Skill | Bloom's Traditional: Comprehension | Bloom's Revised: Understanding

REF: 758dccf0-fda6-11df-8e11-001e33aa91d2 OBJ: G6_PC_75191_IntrotoEnergy

TOP: Energy; Forms: Provide examples of different forms of energy. | Kinetic Energy; Potential

Energy: Classify an object's energy as either kinetic energy, potential energy, or both.

KEY: potential energy | elastic energy

MSC: Uses visual element | Nature of Science | moduleH_u2_Lesson1 Quiz

36. ANS: B PTS: 1

37. ANS: B PTS: 1 DIF: B OBJ: 6/2

38. ANS: A PTS: 1 DIF: B OBJ: 5/2

39. ANS: C

A is incorrect because radiation is the transfer of energy by electromagnetic waves.

B is incorrect because insulation inhibits the transfer of energy, and the difference in temperature is a result of

energy transfer.

C is correct because energy is transferred in the room through currents of moving air.

D is incorrect because conduction takes place when energy is transferred from one particle to another without the

movement of matter. Warm air in a room is carried by air currents.

PTS: 1


Application of Skill | Bloom's Traditional: Comprehension | Bloom's Revised: Understanding

REF: 75d0a250-fda6-11df-8e11-001e33aa91d2

OBJ: G6_PC_75110_ThermalEnergyAndHeat

TOP: Methods of Thermal Energy Transfer: Give examples of processes that demonstrate conduction,

convection, and radiation. KEY: convection | heat | thermal energy

MSC: moduleH_u2_Lesson3 Quiz

ID: A

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40. ANS: A

A is correct because radiation is the process of transferring energy through electromagnetic waves.

B is incorrect because insulation is a process that inhibits the transfer of energy between objects.

C is incorrect because convection is the transfer of energy by the movement of currents within a fluid.

D is incorrect because conduction is the transfer of energy from one particle to another without the movement of

matter.

PTS: 1


Application of Skill | Bloom's Traditional: Application | Bloom's Revised: Applying

REF: 7bdabee0-09ec-11e0-a95d-001e33aa91d2


TOP: Methods of Thermal Energy Transfer: Give examples of processes that demonstrate conduction,

convection, and radiation. | Methods of Thermal Energy Transfer: Define conduction, convection, and

radiation. KEY: conduction | conductor | convection | insulation | radiation

MSC: Nature of Science | Uses visual element | moduleH_u2 Pretest

41. ANS: B

A is incorrect because conduction is the transfer of energy as heat through direct contact.

B is correct because convection requires the movement of a liquid or gas for heat transfer.

C is incorrect because emission is not the term that describes the transfer of energy as heat by the movement of a

liquid or gas.

D is incorrect because radiation is the transfer of heat by electromagnetic waves.

PTS: 1

DIF: Bloom's Traditional: Knowledge | Bloom's Revised: Remembering | Cognitive Complexity: Low |

Depth of Knowledge 2: Basic Application of Skill | Student Level: Basic


TOP: Methods of Thermal Energy Transfer: Define conduction, convection, and radiation.

KEY: conduction | radiation | convection | Heat transfer | thermal energy transfer

MSC: moduleH_u2 Unit Review

42. ANS: C PTS: 1

43. ANS: A PTS: 1

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Practice Test: Energy, Electricity & Waves · Practice Test: Energy, Electricity & Waves True/False Indicate whether the statement is true or false. The Only Reason to Learn Algebra