Unit 1 Space Systems Review

What is the relationship between wavelength and frequency in the electromagnetic spectrum?

• Shorter wavelength = lower frequency

• Longer wavelength = higher frequency

• Shorter wavelength = higher frequency

• Wavelength and frequency are unrelated

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What is the length of one wave called?

• Frequency

• Amplitude

• Wavelength

• Velocity

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What is the purpose of a spectrometer?

• To measure temperature

• To view specific wavelengths of light

• To calculate speed

• To amplify sound

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What process allows stars to give off energy?

• Nuclear fission

• Nuclear fusion

• Chemical reaction

• Combustion

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NGSS.HS-ESS1-1

What are the two main components of the sun's spectra?

• Oxygen and hydrogen

• Carbon and helium

• Hydrogen and helium

• Nitrogen and carbon

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What is the effect on wavelength when an object moves away from an observer?

• wavelength increases

• wavelength remains the same

• wavelength decreases

• wavelength disappears

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We feel the Sun's energy as...

• Sound and light

• Light and heat

• Heat and sound

• Light and electricity

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What happens to light waves as the universe expands?

• They become shorter.

• They become longer.

• They remain the same.

• They disappear.

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What is the main reason main sequence stars are stable?

• They are constantly expanding

• They are constantly contracting

• Outward and inward forces are equal

• They have no forces acting on them

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What is stellar nucleosynthesis?

• The destruction of elements in stars

• The formation of new elements in stars

• The cooling of stars

• The explosion of stars

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