Question 1

How did Hubble tell the universe was expanding?

Accepted Answer

Galaxies were moving away from each other.

Answer

The number of galaxies was increasing.

Answer

Galaxies were getting bigger.

Answer

Galaxies were moving toward each other.

Question 2

What is an advantage of a reflecting telescope?

Accepted Answer

It can focus images perfectly.

Answer

It can use very small lenses.

Answer

It can detect distant objects.

Answer

It can gather more light.

Question 3

How does the Earth's atmosphere affect starlight?

Accepted Answer

It causes it to shimmer and blur.

Answer

It stretches it.

Answer

It causes it to change colors.

Answer

It blocks it.

Question 4

What is the imaginary point directly above an observer's head?

Accepted Answer

zenith

Answer

celestial sphere

Answer

right ascension

Answer

altitude

Question 5

Where do scientists put telescopes to avoid interference from Earth's atmosphere?

Accepted Answer

In space.

Answer

In deserts.

Answer

In valleys.

Answer

In cities.

Question 6

This person proved there were many galaxies.

Accepted Answer

Hubble

Answer

Galileo

Answer

Kepler

Answer

Ptolemy

Question 7

This person had an earth centered theory of the universe.

Accepted Answer

Ptolemy

Answer

Copernicus

Answer

Galileo

Answer

Newton

Question 8

What does to Earth's atmosphere do to most types of electromagnetic radiation?

Accepted Answer

blocks them

Answer

absorbs them

Answer

freezes them

Answer

stretches them

Question 9

What is the imaginary sphere, created by scientists, that surrounds the earth?

Accepted Answer

celestial sphere

Answer

astrolabe

Answer

ecliptic

Answer

zenith

Question 10

Which of the following indicates the universe is expanding?

Accepted Answer

observations of red shift

Answer

observations of blue shift

Answer

the discovery of other galaxies

Answer

an increase in the number of constellations in the sky

Question 11

The line where the earth and sky appear to meet

Accepted Answer

horizon

Answer

altitude

Answer

equator

Answer

latitude

Question 12

The angle between a star and the horizon is the star's

Accepted Answer

altitude

Answer

zenith

Answer

horizon

Answer

celestial sphere

Question 13

Showed the planets move in elliptical orbits around the sun.

Accepted Answer

Kepler

Answer

Hubble

Answer

Galileo

Answer

Ptolemy

Question 14

Showed that gravity keeps planets and moons in orbit.

Accepted Answer

Newton

Answer

Galileo

Answer

Kepler

Answer

Hubble

Question 15

What makes up the electromagnetic spectrum?

Accepted Answer

all of the wavelengths of electromagnetic radiation

Answer

all the colors of invisible light

Answer

all the colors of visible light

Answer

microwaves, gamma rays, and X-rays

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