Unit 2 Review

How do light waves travel through different materials?

• Light travels through air and water but not solids.

• Light travels through solids and water but not air.

• Light travels at the same speed through all mediums.

• Light travels through all mediums but travels slowest through solids.

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Why do astronomers use X-ray or radio telescopes to capture images of objects in space?

• Telescopes are the only form of technology that can detect images in space

• Telescopes can capture images in all forms of the electromagnetic spectrum

• Telescopes can capture images at wavelengths of light that are visible to the human eye

• Telescopes can capture images at wavelengths of light that are invisible to the human eye

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The Sun is classified as this type of star:

• Red Giant

• Yellow Dwarf

• White Dwarf

• Main Sequence

The layer of the Sun where Nuclear Fusion occurs:

• The Chromosphere

• The Core

• The Photosphere

• The Corona

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What happens to the light as it enters the pond?

• Reflection

• Refraction

• Absorption

• Scattering

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An astronomer observes a sunspot. Which of the following describes this feature of the Sun?

• Where heat rises to the Sun’s surface

• Location that produces most of the Sun’s heat energy

• Location that is cooler than other parts of the Sun’s surface

• Where energy and matter leave the Sun’s atmosphere

The visible surface of the Sun that we can see from Earth

• Photosphere

• Chromosphere

• Radiative Zone

• Atmosphere

Energy from the Sun's core moves through the radiative zone via

• Nuclear Fusion

• Radiation

• Convection

• Emanation

How does Star X compare to the Sun?

• Star X is brighter and hotter than the Sun.

• Star X is dimmer and cooler than the Sun.

• Star X is dimmer and hotter than the Sun.

• Star X is brighter and cooler than the Sun.

The outermost layer of the Sun's atmosphere

• Stratosphere

• Photosphere

• Chromosphere

• Corona