Doppler Effect: Sound Quiz

Froggy Jumps

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About this activity

Test your understanding of the Doppler effect in sound.

Created by

DEYAA ELSHAZLY

United Arab Emirates

Download the paper version to play

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Froggy Jumps Doppler Effect: Sound QuizOnline version Test your understanding of the Doppler effect in sound. by DEYAA ELSHAZLY 1 What happens to the pitch of a passing siren as it moves toward you? a Frequency decreases b Frequency increases c No change in frequency 2 If the source and observer move toward each other, what happens to the observed frequency? a Frequency stays the same b Frequency increases c Frequency decreases 3 As a moving sound source recedes, the observed frequency typically: a Increases b Decreases c Remains constant 4 Which factor primarily determines the observed frequency shift? a Relative motion between source and observer b Color of the source c Ambient temperature 5 If the observer moves toward a stationary source, the observed frequency: a Remains the same b Increases c Decreases 6 The Doppler effect for sound assumes the medium is: a Vacuum b A perfect reflector c Air (or the medium around the wave) 7 What happens to wavelength when the frequency observed increases but wave speed stays the same? a Wavelength stays the same b Wavelength decreases c Wavelength increases 8 Which scenario causes the largest audible shift infrequency? a Low speed of sound b Source and observer at rest c High relative speed between source and observer 9 If the source moves toward you faster than the sound speed, what is observed? a Nothing physical; it’s impossible for sound to catch up b Frequency becomes infinite c You hear a constant tone 10 Which condition must be true for Doppler shift to occur with sound? a The medium is a vacuum b The observer is stationary c There is relative motion between source and observer

Froggy Jumps

Doppler Effect: Sound QuizOnline version

Test your understanding of the Doppler effect in sound.

by DEYAA ELSHAZLY

What happens to the pitch of a passing siren as it moves toward you?

Frequency decreases

Frequency increases

No change in frequency

If the source and observer move toward each other, what happens to the observed frequency?

Frequency stays the same

Frequency increases

Frequency decreases

As a moving sound source recedes, the observed frequency typically:

Increases

Decreases

Remains constant

Which factor primarily determines the observed frequency shift?

Relative motion between source and observer

Color of the source

Ambient temperature

If the observer moves toward a stationary source, the observed frequency:

Remains the same

Increases

Decreases

The Doppler effect for sound assumes the medium is:

Vacuum

A perfect reflector

Air (or the medium around the wave)

What happens to wavelength when the frequency observed increases but wave speed stays the same?

Wavelength stays the same

Wavelength decreases

Wavelength increases

Which scenario causes the largest audible shift infrequency?

Low speed of sound

Source and observer at rest

High relative speed between source and observer

If the source moves toward you faster than the sound speed, what is observed?

Nothing physical; it’s impossible for sound to catch up

Frequency becomes infinite

You hear a constant tone

Which condition must be true for Doppler shift to occur with sound?

The medium is a vacuum

The observer is stationary

There is relative motion between source and observer

You can integrate the game into an LMS compatible with LTI 1.1 or LTI 1.3 such as Canvas, Moodle, or Blackboard. This way, the scores will be automatically saved into the platform’s gradebook.

Doppler Effect: Sound Quiz

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Doppler Effect: Sound QuizOnline version

by DEYAA ELSHAZLY

What happens to the pitch of a passing siren as it moves toward you?

If the source and observer move toward each other, what happens to the observed frequency?

As a moving sound source recedes, the observed frequency typically:

Which factor primarily determines the observed frequency shift?

If the observer moves toward a stationary source, the observed frequency:

The Doppler effect for sound assumes the medium is:

What happens to wavelength when the frequency observed increases but wave speed stays the same?

Which scenario causes the largest audible shift infrequency?

If the source moves toward you faster than the sound speed, what is observed?

Which condition must be true for Doppler shift to occur with sound?

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