Beyond Our World

1. The Andromeda Galaxy is the nearest spiral galaxy to the Milky Way Galaxy. Which unit would best be used to represent the distance between the Milky Way Galaxy and the Andromeda Galaxy?

• astronomical unit

• kilometer

• light year

• mile

Rachel is learning about electromagnetic radiation that comes from the sun. What types of electromagnetic radiation does the sun emit?

• gamma rays and ultraviolet radiation

• ultraviolet radiation only

• infrared, visible, and ultraviolet radiation

• all types of electromagnetic radiation

Tags

NGSS.MS-PS4-2

As part of his job at the U.S. Forestry Service, Scott uses satellite images to identify forest areas that have been cleared due to logging. The satellite images, which show forests appearing cooler and cleared areas appearing warmer, are produced using electromagnetic radiation. Which part of the electromagnetic spectrum does Scott’s technology most likely use?

• infrared radiation

• gamma rays

• radio waves

• visible light

Tags

NGSS.MS-PS4-2

When NASA scientists communicate with the mars rover they use electromagnetic radiation with a long wavelength and low energy. Which type of radiation do they most likely use?

• X-rays

• visible light

• radio waves

• infrared waves

Light can sometimes create an optical illusion. For example, you may see something under water and reach into the water to pick it up. However, the object is not where you thought it would be. What property of light is responsible for this optical illusion?

• absorption

• reflection

• refraction

• transmission

Tags

NGSS.MS-PS4-2

What is the name given to the substance through which a wave travels?

• a crest

• a frequency

• a medium

• a state

A wave will travel only as long as it has ____ to carry.

• Energy

• Mass

• Matter

• Amplitude

How does the sun transfer energy to Earth?

• by mechanical waves

• by Earth revolving around the sun

• by electromagnetic waves

• by Earth’s rotation

If you are lying on a raft, and you notice that the number of waves that go past the raft increases, you also find that the distance between each crest ____.

• Increases

• Decreases

• Remains the same

• Spreads out

Tags

NGSS.MS-PS4-1

Electromagnetic waves ____.

• Are compressed waves

• Are transverse waves

• Must have a medium

• Are generated by static electricity