Do Now: Doppler Effect

When an ambulance move TOWARD you it sounds ________ pitched. 

• high
• low
• medium

Tags

NGSS.HS-PS4-1

What can you tell about this object's motion?

• Moving to the North (up).
• Moving to the South (down). 
• Moving to the West (left). 
• Moving to the East (right). 

What can you tell about the motion of this object?

• Moving left.
• Moving right quickly.
• Standing still. 
• Moving up slowly. 

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

What do the light waves of a galaxy that is moving AWAY from us look like?

• red shifted
• blue shifted
• green shifted
• yellow shifted

Tags

NGSS.HS-PS4-1

NGSS.HS-ESS1-2

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

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

What can a Doppler effect be experienced with?

• Light

• Sound

• Water

• Any type of wave

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

The Doppler Effect casues a shift in

• pitch

• frequency

• wavelength

• All of the above

Tags

NGSS.HS-PS4-1

You stand on the sidewalk next to the street. A fire truck is moving towards you. The frequency of the firetruck is 600Hz. What should you hear?

• frequency higher than 600 Hz

• exactly 600 Hz

• frequency lower than 600 Hz

• no sound, silence

Tags

NGSS.HS-PS4-1

You stand on the sidewalk next to the street. A fire truck is moving away from you. The frequency of the firetruck is 500Hz. What could you hear?

• frequency of 500 Hz

• frequency of 720 Hz

• frequency of 375 Hz

• frequency of 1000 Hz

Tags

NGSS.HS-PS4-1