Practice Simple DC Motors (Qualitative Description) - 5.5.3 | Module 5: Electricity and Magnetism | IB Board Grade 9 Physics
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5.5.3 - Simple DC Motors (Qualitative Description)

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the main principle behind a DC motor?

πŸ’‘ Hint: Think about how electrical and magnetic fields interact.

Question 2

Easy

Name the two main components of a simple DC motor.

πŸ’‘ Hint: One is stationary and the other rotates.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does a DC motor primarily convert?

  • Thermal energy to electrical energy
  • Electrical energy to mechanical energy
  • Mechanical energy to thermal energy

πŸ’‘ Hint: Think about what happens inside the motor.

Question 2

True or False: The commutator in a DC motor helps maintain continuous rotation.

  • True
  • False

πŸ’‘ Hint: What would happen if the commutator didn't do this?

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a simple experimental setup to test how varying the strength of the magnetic field affects a DC motor's performance.

πŸ’‘ Hint: Consider how the proximity of the magnets alters the field strength.

Question 2

Considering a quarter applications of DC motors, explain two applications and their significance.

πŸ’‘ Hint: Think of real-world scenarios where motors help us.

Challenge and get performance evaluation