Use the image to identify the motion of the object relative to Earth. Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.

It is moving towards Earth (Blueshift)

It is not moving relative to Earth

It is moving away from Earth (Redshift)

It is moving towards Earth (Redshift)

Use the image to identify the motion of the object relative to Earth. Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.

It is moving away from Earth (Redshift)

It is moving towards Earth (Blueshift)

It is moving towards Earth (Redshift)

Use the image to identify the motion of the object relative to Earth. Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.

It is not moving relative to Earth

It is moving away from Earth (Redshift)

It is moving towards Earth (Blueshift)

It is moving towards Earth (Redshift)

Which discovery(ies) came from our understanding redshift/ blueshift?

All of the above (and many more)

Most galaxies are moving away from us

Andromeda galaxy will collide with the Milky way in 3.75 billion years

What is the Doppler effect?

The observed change in frequency of sound or light because of the relative motion of a wave source and the observer.

The observed change in amplitude of sound or light because of the relative motion of a wave source and the observer.

The observed change in wave speed of sound or light because of the relative motion of a wave source and the observer.

The observed change in equilibrium position of sound or light because of the relative motion of a wave source and the observer.

Doppler Effect

Quiz

•

Science

•

8th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-ESS1-2, HS-PS4-1, HS-PS2-1

+1

Standards-aligned

Jamie Smythe

Used 547+ times

FREE Resource

Moving to the East (right).

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What direction is this object moving?

left

right

up

down

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Long sound waves are...

Short sound waves are...

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

When an ambulance move TOWARD you it sounds ________ pitched.

What can you tell about this object's motion?

What can you tell about the motion of this object?

What direction is this object moving?

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

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

The vast majority of galaxies in our universe are moving away from us. We know this because we observe __________ in the galaxies absorption spectra.

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