Doppler Effect and Sound Waves review

What does the Doppler effect describe?

• Change in wave amplitude due to motion of object(s)

• Change in wave frequency due to the relative motion of object(s)

• Change in wave speed due to motion of object(s)

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What is an example of the Doppler effect in everyday life?

• The sound of an ambulance siren

• The brightness of a light bulb

• The taste of food

• The color of the sky

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What technology uses the Doppler effect to measure blood flow?

• X-ray

• CT scan

• MRI

• Ultrasound

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How do bats use the Doppler effect?

• To communicate with each other

• To find their way home

• To detect obstacles

• To hunt for prey

What does a bat detect when using the Doppler effect?

• The color of its prey

• The speed of its prey

• The size of its prey

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What is Doppler radar used for by police officers?

• To check for speeding violations

• To measure blood pressure

• To predict weather patterns

• To detect earthquakes

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Who else uses Doppler radar besides police officers?

• Astronomers

• Meteorologists

• Surgeons

• Pilots

What can Doppler radar detect in storm systems?

• Direction and velocity of raindrops

• Lightning strikes

• Humidity levels

• Temperature changes

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What does Doppler radar help meteorologists predict?

• Earthquake occurrences

• Weather patterns

• Tidal waves

• Volcanic eruptions

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Short sound waves are...

• high pitched
• low pitched
• medium pitched

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