The Doppler Effect Astronomy

when a noise is moving towards an observer, the closer it comes...

• the lower the pitch

• the longer the noise

• the higher the pitch

• the quieter the noise

the doppler effect causes a shift in...

• pitch

• wavelength

• frequency

• All of the above

when a noise if moving away from an observer...

• the pitch is lower

• the pitch is higher

• the noise is smoother

• the energy is lower

Tags

NGSS.HS-PS4-1

when the frequency is higher what happens to the wavelength?

• the wavelength gets longer

• The wavelength gets shorter

• the wavelength doesn't change

• I have no idea

Tags

NGSS.HS-PS4-1

When pitch is lower what is happening to the frequency?

• the pitch crescendos

• It is unchanged

• None of these

• It is also lower

Tags

NGSS.HS-PS4-1

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

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

Blueshift frequency

• Is increasing

• Stays the same

• Blueshift has no frequency

• decreases

Redshift wavelength

• doesn't change

• stays the same

• Gets longer/increases

• gets shorter/decreases

What does the color red mean if an object is moving at very high speed in space relative to the observer?

• The object is moving away decreasing the frequency in relation to the observer.

• The object is moving closer increasing the frequency relative to the observer.

• The object is stationary and the frequency is equally distributed in all directions.

• The object is moving closer decreasing the frequency relative to the observer.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3