Unit 7 Test Review

What is one tool that people use to make observations from a distance?

• satellite

• fieldwork

• microscope

• magnifying lens

The transfer of energy as electromagnetic waves is called radiation. Not all electromagnetic waves emit the same radiation. What determines the radiation that an electromagnetic wave emits?

• its speed

• its visibility

• its amplitude

• its wavelength

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-4

Wavelength, frequency, and energy are related. What happens to a wave as its wavelength gets shorter?

• Its frequency and energy increase.

• Its frequency and energy decrease.

• Its frequency increases, while its energy decrease.

• Its frequency decreases, while its energy increases.

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NGSS.HS-PS4-1

Different types of telescopes, such as gamma- ray detectors and radio telescopes, are used in space science. What is the reason for this?

• Different types of telescopes are needed to detect visible light.

• Different types of telescopes are needed to measure the wavelengths of radiation.

• Different types of telescopes are needed to collect data from different ranges of radiation.

• Different types of telescopes are needed to observe the same part of the electromagnetic spectrum.

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NGSS.HS-PS4-4

What is the correct definition of the universe?

• stars, planets, and moons

• solar systems, natural satellites, and galaxies

• all the space, energy, and matter that exists

• all the galaxies that exist

How do we know if galaxies are moving away from Earth?

• If they look smaller through an optical telescope.

• If they look larger through an optical telescope.

• If their spectral lines are shifted toward the violet/blue end of the visible spectrum.

• If their spectral lines are shifted toward the red end of the visible spectrum.

Tags

NGSS.HS-ESS1-2

When waves are compressed or stretched out by moving toward or away from an object, this is called ___________.

• the Doppler effect

• the red shift phenomenon

• the Hertzsprung-Russel diagram

• the coriolis effect

Which color of the visible spectrum has the longest wavelength?

• red

• green

• orange

• blue/violet

Tags

NGSS.HS-PS4-1

Which color of the visible spectrum has the shortest wavelength?

• red

• green

• orange

• blue/violet

Tags

NGSS.HS-PS4-1

Edwin Hubble studied the redshifts of many galaxies. What did he discover about the relationship between the distance from Earth to a galaxy and its motion?

• The greater the galaxy’s distance, the faster it moves away from Earth.

• The speed at which a galaxy moves away from Earth is independent of its distance.

• Distant galaxies move toward Earth, whereas nearby galaxies move away from Earth.

• Distant galaxies orbit nearby galaxies in elliptical paths, much like planets orbit the sun.

Tags

NGSS.HS-ESS1-2