Astrophysics_Chkpt 1_25 Review (EM, Radiation, Hubble, Doppler)

Front

Galaxies that are redshifted are:

Back

moving away from us.

Front

Light from an object moving toward you is closer to which side of the spectrum?

Back

blue

Front

Light waves that are stretched out by objects moving apart:

Back

appear more red.

Front

The Doppler effect predicts that light from a source moving away from Earth will have

Back

longer wavelengths.

Front

According to Hubble's law, faster moving galaxies are now

Back

further away from us

Front

High frequency waves have _________ wavelength.

Back

low

Front

Long sound waves are...

Back

low pitched

Front

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

Back

Low pitched

Front

When an ambulance moves TOWARD you, it sounds ________ pitched.

Back

high

Front

The Doppler effect is seen when a wave-making source moves toward an observer.

Back

True