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Astronomy Unit

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What is the Sun mostly made of?

a)

Helium

b)

Hydrogen

c)

Iron

d)

Nitrogen

2.

How does the Sun rotate?

a)

It doesn't

b)

All sections rotate at the same rate

c)

Different sections rotate at different rates

d)

One half rotates in one direction and the other half rotates in the opposite direction

3.

What is the Photosphere?

a)

The core of the sun

b)

The part that produces the most energy

c)

The visible surface of the Sun

d)

The middle layer of the Sun

4.

Where are most dwarf planets found?

a)

Drifting in space

b)

Orbiting planets

c)

In the asteroid belt

d)

In the Kuiper belt

5.

What are small stony or metallic objects traveling through space?

a)

Asteroids

b)

Meteoroids

c)

Meteors

d)

Meteorites

6.

Where is the asteroid belt located?

a)

Between Mercury and Venus

b)

Outside orbit of Neptune

c)

Between Mars and Jupiter

d)

Between Earth and Mars

7.

What causes tides?

a)

The moon's gravitational pull on Earth

b)

The Sun's gravitational pull on Earth

c)

The Earth's gravitational pull on the moon

d)

The moon's and Sun's gravitational pull on Earth

8.

How long is the Lunar cycle?

a)

30 days

b)

64 days

c)

32.5 days

d)

29.5 days

9.

What is a natural satellite?

a)

A planet

b)

A satellite from Earth

c)

A comet

d)

A moon

10.

At which moon phase can a lunar eclipse occur?

a)

New moon

b)

1/4 moon

c)

3/4 moon

d)

Full moon

11.

What is the layer of the Sun where energy radiates away

from the core?

a)

Corona

b)

Chromosphere

c)

Photosphere

d)

Convective zone

e)

Radiative zone

12.

What is a spring tide?

a)

Where the Earth, Sun, and moon are lined up

b)

Where the Earth, Sun, and moon form a 90 degree angle

c)

The highest high tide

d)

The lowest high tide

13.

What is the outer layer of the Sun's atmosphere that emits UV radiation?

a)

Corona

b)

Chromosphere

c)

Photosphere

d)

Convective zone

e)

Radiative zone

14.

At which moon phase can a solar eclipse occur?

a)

New moon

b)

1/4 moon

c)

3/4 moon

d)

Full moon

15.

What is the middle layer of the Sun's atmosphere only visible during a total solar eclipse?

a)

Corona

b)

Chromosphere

c)

Photosphere

d)

Convective zone

e)

Radiative zone

16.

What is a neap tide?

a)

Where the Earth, Sun, and moon are lined up

b)

Where the Earth, Sun, and moon form a 90 degree angle

c)

The highest high tide

d)

The lowest high tide

17.

What is the layer of the Sun where energy is moved to the surface through convection currents?

a)

Corona

b)

Chromosphere

c)

Photosphere

d)

Convective zone

e)

Radiative zone

18.

What is a huge loop of cooler gases extending out from the Sun?

a)

Prominence

b)

Sunspot

c)

Solar flare

d)

Solar wind

19.

What are asteroids?

a)

Icy body that releases gases and orbits the Sun

b)

Chunks of rocks that orbit the Sun

c)

Rocks drifting in space

d)

Rocks that orbit planets

20.

What is an explosive burst of energy extending out from the Sun?

a)

Prominence

b)

Sunspot

c)

Solar flare

d)

Solar wind