Unit 5 Review

What is the order of the electromagnetic spectrum from shortest to longest wavelength?

• Infrared, visible light, ultraviolet, X-rays, gamma rays, microwaves, radio waves

• Visible light, ultraviolet, infrared, X-rays, gamma rays, microwaves, radio waves

• Ultraviolet, visible light, infrared, X-rays, gamma rays, microwaves, radio waves

• Gamma rays, X-rays, ultraviolet, visible light, infrared, microwaves, radio waves

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What are the different types of waves in the electromagnetic spectrum?

• Sound waves, ocean waves, seismic waves, wind waves, tidal waves, and shock waves

• Heat waves, cold waves, warm waves, hot waves, freezing waves, boiling waves, and chilly waves

• Radio waves, microwaves, infrared waves, visible light, ultraviolet waves, X-rays, and gamma rays

• Red waves, blue waves, green waves, yellow waves, orange waves, purple waves, and pink waves

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What does the HR diagram show about stars?

• It shows the relationship between a star's mass and age.

• It shows the relationship between a star's color and brightness.

• It shows the relationship between a star's luminosity and temperature.

• It shows the relationship between a star's size and distance from Earth.

How are stars classified on the HR diagram?

• By their gravitational pull and magnetic field strength

• According to their color and age

• Based on their size and distance from Earth

• Based on their luminosity and surface temperature

What is the final stage in the life cycle of a star?

• White dwarf, neutron star, or black hole

• Nebula

• Red Giant

• A new Galaxy

What happens during the red giant phase of a star's life cycle?

• It disappears completely.

• It remains the same size and brightness.

• It expands and becomes larger and brighter.

• It shrinks and becomes smaller and dimmer.

What is the Big Bang Theory and how does it explain the origin of the universe?

• The Big Bang Theory is a religious belief about the creation of the universe by a divine being

• The Big Bang Theory is a conspiracy theory about the government hiding the true origin of the universe

• The Big Bang Theory is a TV show about a group of scientists living together

• The Big Bang Theory explains the origin of the universe as a rapid expansion of matter and energy from a singularity.

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What evidence supports the Big Bang Theory?

• Magnetic field reversals, seismic activity, and plate tectonics

• Cosmic microwave background radiation, redshift of galaxies, and abundance of light elements

• Solar flares, lunar phases, and tides

• Fossil records, continental drift, and rock layers

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What is red shift and how does it provide evidence for the expansion of the universe?

• Red shift is the phenomenon where light from distant galaxies appears to be shifted towards shorter wavelengths, indicating that the galaxies are moving towards us. This provides evidence for the expansion of the universe.

• Red shift is the phenomenon where light from distant galaxies appears to be shifted towards longer wavelengths, indicating that the galaxies are stationary. This provides evidence for the expansion of the universe.

• Red shift is the phenomenon where light from distant galaxies appears to be shifted towards longer wavelengths, indicating that the galaxies are moving away from us. This provides evidence for the contraction of the universe.

• Red shift is the phenomenon where light from distant galaxies appears to be shifted towards longer wavelengths, indicating that the galaxies are moving away from us. This provides evidence for the expansion of the universe.

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How is red shift related to the Doppler effect?

• Red shift is related to the Doppler effect because it is a result of the gravitational pull on light from distant galaxies.

• Red shift is related to the Doppler effect because it indicates that the galaxies are moving towards us.

• Red shift is related to the Doppler effect because it is the phenomenon where light from distant galaxies is shifted towards the red end of the spectrum, indicating that the galaxies are moving away from us.

• Red shift is related to the Doppler effect because it causes light from distant galaxies to shift towards the blue end of the spectrum.

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