Practice The Doppler Effect - 7 | Waves and Sound | IB MYP Class 10 Sciences (Group 4)- Physics
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7 - The Doppler Effect

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What happens to the pitch of a sound when you move towards the source?

💡 Hint: Think about what happens to the waves.

Question 2

Easy

Does the frequency increase or decrease as you move away from the sound source?

💡 Hint: Remember the relationship between motion and pitch.

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 is the Doppler Effect?

  • A change in wavelength due to motion.
  • A change in frequency perceived by an observer in relative motion.
  • A type of sound wave.

💡 Hint: Think of how an ambulance sounds different as it approaches.

Question 2

True or False: The frequency of sound increases when an observer moves away from the source.

  • True
  • False

💡 Hint: Recall how pitch changes as you move in relation to sound.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A police car emits a siren at a frequency of 900 Hz. If the car is moving toward you at 60 m/s while the sound speed is 340 m/s, what frequency do you perceive?

💡 Hint: Calculate using the Doppler formula carefully.

Question 2

If a source emitting sound at a frequency of 400 Hz is moving away from you at 40 m/s, what will be the observed frequency? Use sound speed of 340 m/s.

💡 Hint: Remember to plug the values into the formula correctly.

Challenge and get performance evaluation