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WorksheetsHP7.1 Review
Total questions: 16
Worksheet time: 14mins
As galaxies move away from our galaxy
a shift on the electromagnetic spectrum is noticed. This phenomena is
called _____________.
redshift
blueshift
The Big Bang Theory explains the formation of the...
Earth
Sun
Universe
Solar System
Why is the light from distant galaxies red-shifted?
They produce more red light than nearby galaxies
They are moving away from us
The longer wavelengths are filtered out more by dust
They are moving toward us
The "afterglow" of the energy from the origin of the universe that we see today.
Cosmic microwave radiation
sunlight
Doppler effect
Cosmic explosions
In relation to us, most galaxies are…
Moving toward us
Moving away from us
Not moving
What is true about these stars?
Both of these stars are moving away from us.
Both of these stars are moving towards us.
What happens to the wavelengths of energy if they are moving AWAY from a source?
The waves stretch out and get longer.
The waves compress and get shorter.
Hubble's law states...
The further away a galaxy is, the slower it moves away from us
The further away a galaxy is, the faster it moves away from us
The closer a galaxy is, the faster it moves away from us
The closer a galaxy is, the slower it moves away from us
