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Energy and Heat Practice Tests

These Grade 7 Science practice tests build understanding of kinetic and potential energy, thermal energy, heat, temperature, conduction, convection, radiation, insulation, energy transformations, and conservation.

Skills covered

  • Distinguishing kinetic, potential, chemical, thermal, electrical, light, and sound energy
  • Explaining the difference between heat, temperature, and total thermal energy
  • Identifying conduction, convection, radiation, and insulation in real situations
  • Tracking energy transfers and transformations in systems
  • Applying conservation of energy to machines, motion, heating, and everyday technology

How to use these practice tests

For each question, identify the system and the energy form involved. Then trace where energy moves or changes and decide whether the evidence describes heat transfer, temperature, or energy conservation.

For more Grade 7 Science practice, return to the Grade 7 Science category.

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Grade 7 Energy and Heat Practice Tests

Practice Grade 7 Science energy and heat questions about energy forms, heat, temperature, transfer, insulation, and conservation.

Choose the best answer for each question. Review the explanation after submitting your answers.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

What is conduction?

Please select an answer first.

Correct answer: A

The correct answer is Thermal energy transfer through direct contact between particles.

  1. Identify the energy idea: Determine whether the question concerns energy form, energy transfer, heat, temperature, or an energy system.
  2. Connect the evidence: Conduction occurs when neighboring particles transfer energy through collisions and interactions.
  3. Check conservation: Energy can move or change form, but a complete system accounts for the energy rather than treating it as created or destroyed.

Conduction occurs when neighboring particles transfer energy through collisions and interactions.

2. QuestionMultiple choice

What is convection?

Please select an answer first.

Correct answer: B

The correct answer is Thermal energy transfer by the movement of a fluid.

  1. Identify the energy idea: Determine whether the question concerns energy form, energy transfer, heat, temperature, or an energy system.
  2. Connect the evidence: Convection currents move warmer and cooler regions of liquids or gases.
  3. Check conservation: Energy can move or change form, but a complete system accounts for the energy rather than treating it as created or destroyed.

Convection currents move warmer and cooler regions of liquids or gases.

3. QuestionMultiple choice

What is radiation?

Please select an answer first.

Correct answer: C

The correct answer is Energy transfer by electromagnetic waves.

  1. Identify the energy idea: Determine whether the question concerns energy form, energy transfer, heat, temperature, or an energy system.
  2. Connect the evidence: Radiation can transfer energy through space, as sunlight transfers energy to Earth.
  3. Check conservation: Energy can move or change form, but a complete system accounts for the energy rather than treating it as created or destroyed.

Radiation can transfer energy through space, as sunlight transfers energy to Earth.

4. QuestionMultiple choice

Why does warm air rise in a room?

Please select an answer first.

Correct answer: D

The correct answer is Warm air expands, becomes less dense, and is pushed upward by denser cooler air..

  1. Identify the energy idea: Determine whether the question concerns energy form, energy transfer, heat, temperature, or an energy system.
  2. Connect the evidence: Convection occurs because temperature differences create density differences in fluids.
  3. Check conservation: Energy can move or change form, but a complete system accounts for the energy rather than treating it as created or destroyed.

Convection occurs because temperature differences create density differences in fluids.

5. QuestionMultiple choice

How does a metal pan heat food on a stove?

Please select an answer first.

Correct answer: A

The correct answer is Thermal energy conducts through the metal from the hot base to the food..

  1. Identify the energy idea: Determine whether the question concerns energy form, energy transfer, heat, temperature, or an energy system.
  2. Connect the evidence: Metal conducts thermal energy efficiently from the burner through the pan.
  3. Check conservation: Energy can move or change form, but a complete system accounts for the energy rather than treating it as created or destroyed.

Metal conducts thermal energy efficiently from the burner through the pan.

6. QuestionMultiple choice

How does sunlight warm Earth?

Please select an answer first.

Correct answer: B

The correct answer is Radiation transfers energy from the Sun through space to Earth..

  1. Identify the energy idea: Determine whether the question concerns energy form, energy transfer, heat, temperature, or an energy system.
  2. Connect the evidence: Radiation does not require matter between the source and receiver, so sunlight can cross space.
  3. Check conservation: Energy can move or change form, but a complete system accounts for the energy rather than treating it as created or destroyed.

Radiation does not require matter between the source and receiver, so sunlight can cross space.

7. QuestionMultiple choice

Which example shows convection?

Please select an answer first.

Correct answer: C

The correct answer is Water circulates as warmer water rises and cooler water sinks in a pot..

  1. Identify the energy idea: Determine whether the question concerns energy form, energy transfer, heat, temperature, or an energy system.
  2. Connect the evidence: The moving water carries thermal energy through convection currents.
  3. Check conservation: Energy can move or change form, but a complete system accounts for the energy rather than treating it as created or destroyed.

The moving water carries thermal energy through convection currents.

8. QuestionMultiple choice

Which material is usually a good thermal insulator?

Please select an answer first.

Correct answer: D

The correct answer is Foam.

  1. Identify the energy idea: Determine whether the question concerns energy form, energy transfer, heat, temperature, or an energy system.
  2. Connect the evidence: Foam contains trapped air and resists thermal energy transfer more than many metals.
  3. Check conservation: Energy can move or change form, but a complete system accounts for the energy rather than treating it as created or destroyed.

Foam contains trapped air and resists thermal energy transfer more than many metals.

9. QuestionMultiple choice

Why are house walls often filled with insulation?

Please select an answer first.

Correct answer: A

The correct answer is Insulation slows thermal energy transfer between the inside and outside..

  1. Identify the energy idea: Determine whether the question concerns energy form, energy transfer, heat, temperature, or an energy system.
  2. Connect the evidence: Insulating materials reduce conduction and limit air movement, helping maintain indoor temperature.
  3. Check conservation: Energy can move or change form, but a complete system accounts for the energy rather than treating it as created or destroyed.

Insulating materials reduce conduction and limit air movement, helping maintain indoor temperature.

10. QuestionMultiple choice

Why does wearing layers help keep a person warm?

Please select an answer first.

Correct answer: B

The correct answer is Layers trap air and slow the transfer of thermal energy from the body..

  1. Identify the energy idea: Determine whether the question concerns energy form, energy transfer, heat, temperature, or an energy system.
  2. Connect the evidence: Still air is a poor conductor, so clothing layers reduce heat loss.
  3. Check conservation: Energy can move or change form, but a complete system accounts for the energy rather than treating it as created or destroyed.

Still air is a poor conductor, so clothing layers reduce heat loss.

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