Introduction to Space Study Guide

What unit is used to measure large distances in space?

• Kilometer

• Light-year

• Astronomical Unit (AU)

• Mile

What holds a star together?

• Electromagnetic forces

• Pressure from nuclear reactions

• Gravity

• Light waves

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NGSS.HS-PS2-4

Which of the following best describes the electromagnetic spectrum?

• A collection of stars in a galaxy

• A range of all electromagnetic waves arranged by frequency and wavelength

• The distance light travels in a year

• A method for measuring distances between planets

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NGSS.HS-PS4-4

What was the first technology that allowed humans to observe distant objects in space?

• Rovers

• Space suits

• Telescope

• International Space Station

How has space exploration benefited Florida?

• Increased number of animals

• Improved space suits for astronauts

• Boosted economy through tourism and industries

• Decreased employment opportunities

What is a galaxy composed of?

• Solar systems, stars, and gas clouds held together by gravity

• Only solar systems

• Planets that orbit other planets

• Black holes and comets

What is the Milky Way?

• A constellation

• The galaxy containing our solar system

• The only galaxy in the universe

• A cluster of asteroids

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NGSS.MS-ESS1-2

The list below shows four stars and their distances in light-years from Earth. Which of the numbered locations could be reached by humans in 400 years if humans could travel at one-half (1/2) the speed of light? Circle all the correct answer(s).

• Sirius (8.6)

• Altair (16.7)

• Betelgeuse (42.5)

• Antares (55.3)

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NGSS.MS-ESS1-3

1. The list below shows four stars and their distances in light-years from Earth. Which of the numbered locations could be reached by humans in 300 years if humans could travel at one-fourth (1/4) the speed of light?

• Alpha Centauri (4.37)

• Procyon (11.4)

• Vega (25.3)

• Arcturus (36.7)

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NGSS.MS-ESS1-3

The unit used to measure distances beyond our solar system is called a ________.

• light-year
• meters

• kilometers

• feet