Inspire Earth Science Mod 21 Test

________ collects and focus electromagnetic radiation emitted or reflected from distant objects.

• Spaceships

• The sun

• Telescopes

_________ is classified by wavelength and frequency.

• Wavelength

• Frequency

• Electromagnetic radiation

The two main types of optical telescopes are refractors and ________

• refrigerators

• recumbent

• reflectors

Space-based astronomy includes the study of orbiting telescopes, __________, and probes.

• satellites

• asteroids

• UFO's

True or False. Technology originally developed to explore space is now used by people on Earth.

• True

• False

Astronomers have gathered information about the Moon using telescopes, space probes, and

• Submarines

• Helicopters

• astronaut exploration

Like Earth's crust, the Moon's crust is composed mostly of

• silicates

• plastic

• ice

• gold

Surface features on the moon do NOT include ___________.

• water

• highlands

• maria

• ejecta

The moon probably formed about 4.5 bya in a collision between Earth and a _________ -sized object.

• basketball

• Jupiter

• Sun

• Mars

Earths Rotation makes the Sun and other objects in space appear to _________ each day,

• explode

• increase in size

• rise and set

• transform