Doppler Effect

The pitch of a sound wave relates to the wave's _________________.

• Amplitude

• Frequency

• Wavelength

• Period

Tags

NGSS.HS-PS4-1

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

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

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.

Tags

NGSS.HS-PS4-1

Galaxies emit colors red and blue due to the Doppler Effect.

• True

• False

Tags

NGSS.HS-ESS1-2

What is Redshift

• Objects move away us, give off red light

• Objects move towards us, give off blue light

• Objects move towards us, give off red light

• Objects move away us, give off blue light

Tags

NGSS.HS-ESS1-2

What is Blueshift

• Objects move away us, give off red light

• Objects move towards us give off blue light

• Objects move away us, give off blue light

• Objects move towards us, give off red light

Tags

NGSS.HS-PS4-3

Look at the picture. Who is experiencing a higher pitched sound?

• Observer A

• Observer B

• There's no difference

Tags

NGSS.HS-PS4-1

What best describes the doppler effect?

• An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
• When sound changes pitch
• When light changes color
• An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.

Tags

NGSS.HS-PS4-1

when the frequency is higher what happens to the wavelength?

• the wavelength gets longer

• b. The wavelength gets shorter

• c. the wavelength doesn't change

• d. none of these

Tags

NGSS.HS-PS4-1

When a pitch is lower what is happening to the frequency?

• a. the pitch crescendos

• b. It is also lower

• c. It is unchanged

• d. None of these

Tags

NGSS.HS-PS4-1