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Grade 4 Science · Electricity and Magnetism

Grade 4 Electricity and Magnetism Practice Test

Build Grade 4 Science skills with five 10-question practice tests on circuits, conductors, insulators, switches, magnets, magnetic poles, electromagnets, motors, and electrical safety.

Electricity and Magnetism Practice Tests

These Grade 4 Science practice tests help students explain how electrical circuits and magnetic forces work. Students identify conductors and insulators, build complete circuits, describe magnetic poles, explore electromagnets, and apply electrical safety rules.

Skills covered

  • Identifying complete circuits, switches, conductors, and insulators
  • Explaining how batteries provide electrical energy
  • Describing attraction and repulsion between magnetic poles
  • Explaining magnetic fields and electromagnets
  • Connecting electricity and magnetism in motors and devices
  • Applying safe practices and fair-test design

How to use these practice tests

For circuit questions, trace the complete path from the energy source through the conducting materials. For magnet questions, identify the poles and the materials involved. Always use safe practices around outlets, batteries, wires, and electrical devices.

For more Grade 4 Science practice, return to the Grade 4 Science category.

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Grade 4 Electricity and Magnetism Practice Tests

A 10-question Grade 4 Science practice test on circuits, conductors, insulators, switches, magnets, magnetic poles, electromagnets, and electrical safety.

Read each science situation and choose the answer that best explains the electrical circuit, magnetic force, energy change, or safety rule.

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

Which action is safest before checking an electrical appliance?

Please select an answer first.

Correct answer: A

The correct answer is Turn it off, unplug it, and ask an adult for help..

  1. Identify the system: Look for a complete circuit, a conducting path, a magnet, or a magnetic force.
  2. Apply the rule: Turning off and unplugging equipment reduces electrical danger, and adults should handle repairs.
  3. Confirm the result: The correct choice is Turn it off, unplug it, and ask an adult for help..

Turning off and unplugging equipment reduces electrical danger, and adults should handle repairs.

2. QuestionMultiple choice

How does a compass use magnetism?

Please select an answer first.

Correct answer: B

The correct answer is Its magnetized needle aligns with Earth’s magnetic field..

  1. Identify the system: Look for a complete circuit, a conducting path, a magnet, or a magnetic force.
  2. Apply the rule: The needle is a small magnet that points along Earth’s magnetic field.
  3. Confirm the result: The correct choice is Its magnetized needle aligns with Earth’s magnetic field..

The needle is a small magnet that points along Earth’s magnetic field.

3. QuestionMultiple choice

Why might a recycling center use a large electromagnet?

Please select an answer first.

Correct answer: C

The correct answer is It can lift iron and steel objects and release them when current stops..

  1. Identify the system: Look for a complete circuit, a conducting path, a magnet, or a magnetic force.
  2. Apply the rule: Electromagnets can be switched on and off to move ferromagnetic materials.
  3. Confirm the result: The correct choice is It can lift iron and steel objects and release them when current stops..

Electromagnets can be switched on and off to move ferromagnetic materials.

4. QuestionMultiple choice

How can a speaker use magnetism?

Please select an answer first.

Correct answer: D

The correct answer is Electrical signals interact with a magnet to make a part vibrate and produce sound..

  1. Identify the system: Look for a complete circuit, a conducting path, a magnet, or a magnetic force.
  2. Apply the rule: The interaction of current and magnets moves the speaker cone and creates sound.
  3. Confirm the result: The correct choice is Electrical signals interact with a magnet to make a part vibrate and produce sound..

The interaction of current and magnets moves the speaker cone and creates sound.

5. QuestionMultiple choice

How are strong magnets used in an MRI machine?

Please select an answer first.

Correct answer: A

The correct answer is They help create detailed images of structures inside the body..

  1. Identify the system: Look for a complete circuit, a conducting path, a magnet, or a magnetic force.
  2. Apply the rule: MRI technology uses powerful magnetic fields with radio signals to create body images.
  3. Confirm the result: The correct choice is They help create detailed images of structures inside the body..

MRI technology uses powerful magnetic fields with radio signals to create body images.

6. QuestionMultiple choice

Which device can use magnetism to store information?

Please select an answer first.

Correct answer: B

The correct answer is A magnetic hard drive.

  1. Identify the system: Look for a complete circuit, a conducting path, a magnet, or a magnetic force.
  2. Apply the rule: A magnetic hard drive stores data by changing magnetic patterns.
  3. Confirm the result: The correct choice is A magnetic hard drive.

A magnetic hard drive stores data by changing magnetic patterns.

7. QuestionMultiple choice

Which design uses magnetism for a useful purpose?

Please select an answer first.

Correct answer: C

The correct answer is A magnetic closure that keeps a cabinet door shut.

  1. Identify the system: Look for a complete circuit, a conducting path, a magnet, or a magnetic force.
  2. Apply the rule: A magnetic closure uses attraction to hold the door closed.
  3. Confirm the result: The correct choice is A magnetic closure that keeps a cabinet door shut.

A magnetic closure uses attraction to hold the door closed.

8. QuestionMultiple choice

Which investigation tests how distance affects magnetic force?

Please select an answer first.

Correct answer: D

The correct answer is Measure how far a magnet can pull a paper clip while keeping the same magnet and clip..

  1. Identify the system: Look for a complete circuit, a conducting path, a magnet, or a magnetic force.
  2. Apply the rule: Keeping the objects the same while changing distance isolates the effect of distance.
  3. Confirm the result: The correct choice is Measure how far a magnet can pull a paper clip while keeping the same magnet and clip..

Keeping the objects the same while changing distance isolates the effect of distance.

9. QuestionMultiple choice

Which energy chain describes a battery-powered flashlight?

Please select an answer first.

Correct answer: A

The correct answer is Chemical energy in the battery becomes electrical energy, then light and heat..

  1. Identify the system: Look for a complete circuit, a conducting path, a magnet, or a magnetic force.
  2. Apply the rule: The battery stores chemical energy that becomes electrical energy and then light and heat.
  3. Confirm the result: The correct choice is Chemical energy in the battery becomes electrical energy, then light and heat..

The battery stores chemical energy that becomes electrical energy and then light and heat.

10. QuestionMultiple choice

Which statement best summarizes electricity and magnetism?

Please select an answer first.

Correct answer: B

The correct answer is Electric current can produce magnetic effects, and magnetic forces can help produce motion or electricity..

  1. Identify the system: Look for a complete circuit, a conducting path, a magnet, or a magnetic force.
  2. Apply the rule: Electricity and magnetism are connected and can be used together in many devices.
  3. Confirm the result: The correct choice is Electric current can produce magnetic effects, and magnetic forces can help produce motion or electricity..

Electricity and magnetism are connected and can be used together in many devices.

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Frequently asked questions about Grade 4 Electricity and Magnetism

What is a closed circuit?

A closed circuit is a complete conducting path that allows electric current to travel from the energy source and back.

What is an electromagnet?

An electromagnet is a magnet made by running electric current through a coil of wire, often around an iron core.

How many questions are on this page?

The page includes five mini tests with 10 questions each, for 50 Grade 4 Electricity and Magnetism questions in total.