Sound and the Doppler Effect

When a car moves towards you, the sound of its horn seems relatively...

• Low pitched
• High pitched
• Normal

Tags

NGSS.HS-PS4-1

When the car moves away from you, its horn seems...

• Low pitched
• High pitched
• Normal

Tags

NGSS.HS-PS4-1

True or False: The Doppler effect occurs when a wave source moves towards an observer. 

• True
• False

Tags

NGSS.HS-PS4-1

True or False: The Doppler effect occurs when an observer moves towards a wave source. 

• True
• False

Tags

NGSS.HS-PS4-1

True or False: The Doppler effect occurs when an observer moves away from a wave source. 

• True
• False

Tags

NGSS.HS-PS4-1

How does the Doppler effect provide evidence for the Big Bang Theory?

• It shows that galaxies make lots of sound waves. 
• It shows that galaxies are blue shifted and moving toward us.
• It shows that galaxies are redshifted and moving away from us. 
• It is not evidence for the Big Bang Theory. 

Tags

NGSS.HS-ESS1-2

Based on the Doppler effect you see, what direction is this object moving?

• left
• right
• up
• down

Tags

NGSS.HS-PS4-1

Based on the Doppler effect, what can you tell about the motion of this object?

• It is moving left.
• It is moving right quickly.
• It is standing still. 
• It is moving up slowly. 

Tags

NGSS.HS-PS4-1

Based on the Doppler effect, what can you tell about this object's motion?

• It's velocity is to the North.
• It's velocity is to the South. 
• It's velocity is to the West. 
• It's velocity is to the East. 

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

What was the independent variable in the jet airplane experiment?

• Velocity
• Wavelength
• mm
• the mouse