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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What happens to the frequency of sound when the source moves towards you?
💡 Hint: Think of the pitch of the sound.
Question 2
Easy
What is the term for the increase in frequency as a source approaches an observer?
💡 Hint: It relates to color perception.
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 happens to the frequency when the source approaches an observer?
- It increases
- It decreases
- It remains the same
💡 Hint: Think about how the sound changes as something moves closer.
Question 2
The term 'blue shift' refers to which phenomenon?
- True
- False
💡 Hint: What color represents higher frequency in light?
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A rocket blasts off, producing a sound frequency of 2,000 Hz, and is moving towards a stationary observer at a speed of 100 m/s. Calculate the observed frequency if the speed of sound is 343 m/s.
💡 Hint: Pay attention to whether the speeds are for the source or observer.
Question 2
A cyclist moving at 15 m/s is listening to a phone ringing at a frequency of 800 Hz. If the sound speed is 340 m/s, what is the frequency perceived by the cyclist?
💡 Hint: Remember to consider the direction of motion of the cyclist.
Challenge and get performance evaluation