Free Printable Astro Review

1.

What is the second closest star to us?

a)

Sol

b)

Proxima Centauri

c)

Betelgeuse

d)

Andromeda

2.

By what process do stars make all their energy?

a)

Nuclear fission

b)

Nuclear fusion

c)

planetary nebula

d)

SMBH

3.

What word is often used in place of brightness?

(a)

4.

List the spectral classes in order of hottest to coldest

(a) (b) A (c) G (d) (e)

Choose from the below words

O

B

F

K

M

5.

What class is the Sun?

a)

O

b)

B

c)

A

d)

F

e)

G

6.

Which astronomer created the spectral classes?

a)

Gallileo Gallilei

b)

Nicolaus Copernicus

c)

Annie Jump Cannon

d)

Ptolemy

7.

The color a star gives off is determined by its (a) .

8.

How many sub-classes are there of each spectral class?

a)

5

b)

10

c)

15

d)

20

9.

The Hertzsprung-Russell diagram shows the relationship between a star's (a) and its (b)

Choose from the below words

temperature

luminosity

radius

age

mass

10.

The HR Diagram is a very useful graph because it can be used to chart the (a) (b) of a star.

Choose from the below words

life

cycle

color

spectrum

temperature

gradient

age

mass

distribution

11.

What type of mathematical scale does the vertical axis (luminosity) use?

a)

logarithmic

b)

linear

c)

quadratic

d)

exponential

12.

The band that runs from the top left to the bottom right of the chart is called the (a) (b)

Choose from the below words

main

sequence

linear

cosmic

band

13.

What property of a star controls both its temperature and brightness?

a)

radius

b)

age

c)

life stage

d)

mass

14.

Which stars plot below and to the left of the main sequence?

a)

white dwarf

b)

brown dwarf

c)

red giant

d)

neutron star

15.

What percentage of a star's life is spent in the main sequence?

a)

60%

b)

70%

c)

80%

d)

90%

16.

Reorder these stages of a star's life

a)

Main sequence

b)

giant

c)

supernova or white dwarf

1)

2)

3)

17.

Stars in the main-sequence stage give out energy as (a) and (b)

Choose from the below words

light

heat

sound

rainbows

unicorns

butterflies

18.

The inward pull of (a) is balanced by the outward gas pressure due to (b) (c) (d) deep in the star's core.

Choose from the below words

gravity

nuclear

fusion

reactions

19.

This balance is called (a) (b) and stops main sequence stars from collapsing.

Choose from the below words

hydrostatic

equilibrium

planetary

nebula

supermassive

black hole

20.

The (a) of a star controls how long it stays in the main sequence stage.

21.

All stars form in nebulae which are (a) (b) of (c) and (d)

Choose from the below words

huge

clouds

gas

dust

22.

Reorder the life stages for an average star:

a)

stellar nebulae

b)

main sequence

c)

red giant

d)

planetary nebulae

e)

white dwarf

1)

2)

3)

4)

5)

23.

Reorder the life stages for a massive star:

a)

stellar nebulae

b)

main sequence

c)

red supergiant

d)

supernova

e)

neutron star or black hole

1)

2)

3)

4)

5)

24.

If the star is especially massive, when it explodes it forms a:

a)

black hole

b)

new galaxy

c)

white dwarf

d)

planetary nebulae

25.

When are black holes made?

a)

at the beginning of the universe

b)

during a solar eclipse

c)

during supernova explosions

d)

during galactic mergers

26.

When did scientists first discover gravitational waves?

a)

1815

b)

1955

c)

1995

d)

2015

27.

Not even (a) can escape a black hole

Choose from the below words

light

mass

time

space

28.

The distance at which light cannot escape from a black hole is known as its (a) (b)

Choose from the below words

event

horizon

escape

radius

vortex

accretion

disk

29.

(a) (b) is what happens when black holes are so massive their gravity distorts and bends the light from distant galaxies.

Choose from the below words

gravitational

lensing

light

distortion

spectral

bend

bending

30.

A luminous object is one that gives off ____. In other words, it glows (or shines).

a)

mass

b)

light

c)

time

d)

heat

31.

Stars shine using energy created by (a) (b) n in their cores

Choose from the below words

nuclear

fusion

fission

spectral

radiation

plasma

recombination

32.

When should you look at the Sun?

a)

Only if you're wearing sunglasses

b)

Not during an eclipse

c)

Each morning so you can harness the Sun's energy

d)

Never! The light could damage your eyes.

33.

(a) keeps every object in orbit around the Sun

34.

(a) reactions happening inside the Sun make heavier elements like oxygen, carbon, neon, and iron.

Choose from the below words

Nuclear

chemical

physical

quantum

35.

Put these parts of the Sun in order from inside to out:

a)

Core

b)

Radiative Zone

c)

Convective Zone

d)

Photosphere

e)

Atmosphere

1)

2)

3)

4)

5)

36.

What is responsible for the activity we can see on the surface of the Sun?

a)

Magnetic fields

b)

Convection cells

c)

Gravitational lensing

d)

Photoelectric effect

37.

Reorder the following phases for the remainder of the Sun's "life":

a)

Red giant

b)

Planetary nebula

c)

White dwarf

d)

Brown dwarf

1)

2)

3)

4)

38.

The bending and twisting of the Sun's magnetic lines creates (a) and (b) (c)

Choose from the below words

sunspots

solar

flares

wind

magma

eclipses

39.

Who discovered the nucleus?

a)

Ernest Rutherford

b)

Niels Bohr

c)

Max Planck

d)

James Clerk Maxwell

40.

You (and everything around you) are made of

a)

energy

b)

light

c)

stardust

d)

magic

41.

It is really hard to make nuclear fusion power stations on earth because we would need to replicate the conditions similar to the inside of:

a)

stars

b)

black holes

c)

planets

d)

galaxies

42.

The Big Bang place around __,000 million years ago.

a)

57

b)

82

c)

63

d)

14

43.

The Universe is mostly made of:

a)

Nothing!

b)

Hydrogen

c)

Interstellar medium

d)

Dark matter

44.

Match each piece of evidence for the Big Bang with it's description:

a)

Redshift of Galaxies

1.

This is the result of galaxies moving away from us and tells us that the Universe is expanding.

b)

Microwave Background Radiation

2.

There is a "glow" left over from the heat form the early Universe.

c)

Mixture of Elements

3.

Newer stars are made up of heavier elements than older stars.

d)

Looking back in time

4.

Galaxies far away are older than newer galaxies, showing that the universe has changed over time

45.

Most galaxies appear to be moving (a) (b) us.

Choose from the below words

away

from

closer

to

46.

With light, "lower" means more (a) and "higher" means more (b) .

Choose from the below words

red

blue

47.

Put these methods in order of distance

a)

Radar

b)

Parallax

c)

Standard Candles

d)

Redshift

1)

2)

3)

4)

48.

Of course, because light takes so long to travel between stars and galaxies, when you look at very distant objects, you are actually looking (a) (b) (c)

Choose from the below words

back

in

time

Astro Review

Total questions: 48

Worksheet time: 50mins

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