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WorksheetsDoppler Effect Edexcel IGCSE
Total questions: 14
Worksheet time: 31mins
The pitch of a sound wave relates to the wave's _________________.
Amplitude
Frequency
Wavelength
Period
What is the Doppler Effect?
A change in frequency due to the relative motion of a wave source and an observer
When a wave overlaps with another wave
When a wave bounces off of another object
When a wave bends due to traveling through a different medium
An ambulance is driving towards you as you stand on the sidewalk. What happens to the pitch of the siren as it comes towards you?
It increases
It decreases
You are driving in a car and honk the horn at a person standing in the street. As you approach the person, what happens to the pitch of the horn according to you in the car?
It increases
It decreases
It stays the same because you are in the car moving with the sound.
Light can change color due to the Doppler Effect.
True
False
You are standing on the side of the road when a police car races past you with its siren on. After the police car passes you, what happens to the pitch of the siren?
It increases
It decreases
It turns red
Look at the picture. Who is experiencing a higher pitched sound?
Observer A
Observer B
There's no difference
Look at the picture. Who is experiencing a lower pitched sound?
Observer A
Observer B
There is no difference
You stand on the sidewalk next to the street. A fire truck is away from you. The frequency of the siren on the fire truck is 600 Hz.
What should the firemen on the truck hear?
Frequency higher than 600 Hz
Frequency lower than 600 Hz
Exactly 600 Hz
No sound, silence.
