Quiz 1 of 0
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SPH3U: Lesson 25 Quiz
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Use the student exploration guide to further investigateĀ the doppler effect.
The Doppler Effect
- For safety, when a train approaches a crossing it blows its whistle. If you were waiting at the crossing, you would notice that the pitch of the whistle becomes lower once the train has passed you. Explain why this is the case.
- You and a few friends decide to conduct a Doppler experiment. You stand 50 m in front of a parked car and your friend stands 50 m behind the same parked car. A second friend then honks the horn of the car.
- What similarities and differences will there be in the sound that is heard by:
- You
- Your friend behind the car.
- Your friend who is in the car honking the horn.
- For the second part of your Doppler experiment, your friend starts driving the car towards you while honking the horn. What similarities and differences will there be in the sound that is heard by:
- You.
- Your friend behind the car.
- Your friend who is in the car honking the horn.
- What similarities and differences will there be in the sound that is heard by:
Rubric
The Doppler Effect
| Categories | Level 1 (50 – 59%) | Level 2 (60 – 69%) | Level 3 (70 – 79%) | Level 4 (80 – 100%) |
|---|---|---|---|---|
| Application: analyse the relationship between a moving source of sound and the change in frequency perceived by a stationary observer (i.e., the Doppler effect). WS2.05. | Analyses the relationship between a moving source of sound and the change in frequency perceived by a stationary observer with limited proficiency. | Analyses the relationship between a moving source of sound and the change in frequency perceived by a stationary observer with some proficiency. | Analyses the relationship between a moving source of sound and the change in frequency perceived by a stationary observer with considerable proficiency. | Analyses the relationship between a moving source of sound and the change in frequency perceived by a stationary observer with a high degree of proficiency. |
Note: A student whose achievement is below Level 1 (50%) has not met the expectations for this assignment or activity.