Intro to Astronomy

The distance light travels in one year is called

• an astronomical unit

• a light year

• a parsec

• a kilometer

Most effective way to measure distances in the Solar System

• Radar

• Parallax

• Main-Sequence Fitting (HR diagram)

• Cepheid variable stars

• Type 2a (white dwarf) supernovae

A refracting telescope uses _______ to focus light.

• Lenses

• Mirrors

• Lasers

• Water

Why do we use the entire electromagnetic spectrum to study space?

• Because the visible spectrum is such a small part of light we are missing out by not doing so.

• So we can determine the direction galaxies are moving

• So we can understand the nature of time.

• So we can see the composition of galaxies

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-4

What is L?

• tube

• primary mirror

• secondary mirror

• eye piece

Tags

NGSS.MS-PS4-2

Telescopes can detect _______ radiation from the sky.

• only visible

• radio and visible

• UV, radio and visible

• All types of

Tags

NGSS.HS-PS4-3

Which color waves have the lowest frequency?

• red

• yellow

• green

• violet

The average distance between the Earth and Sun is called

• a light year

• an astronomical unit

• a parsec

• a kilometer

Tags

NGSS.MS-ESS1-3

The Moon is about _____ the diameter of the Earth

• 1/2

• 1/4

• 1/3

• 1/6

Tags

NGSS.MS-ESS1-3

Which order is correct for the inner planets

• Mercury, Venus, Earth, Mars

• Mars, Venus, Earth, Mercury

• Mercury, Earth, Venus, Mars

• Venus, Earth, Mercury, Mars