wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

IGCSE Review - Astrophysics

Total questions: 35

Worksheet time: 47mins

Name
Class
Date
1.

Mars has a smaller gravitational field strength at the surface than the Earth. This is because...

a)

The mass of Mars is smaller than Earth.

b)

Mars has a very thin atmosphere.

c)

Mars has no water on the surface.

d)

Mars orbits the Sun at a slower speed than Earth.

2.

Which of the following answers best describes the orbits of planets, moons and comets?

a)

A

b)

B

c)

C

d)

D

3.

Which of the following gives the sizes of astronomical objects in order of increasing size?

a)

Solar system, universe, galaxy

b)

Universe, galaxy, solar system

c)

Solar system, galaxy, universe

d)

Galaxy, solar system, universe

4.

Approximately how many stars are in a typical galaxy?

a)

Hundreds of stars

b)

Thousands of stars

c)

Millions of stars

d)

Billions of stars

5.

What is the name of our own galaxy containing the Sun?

a)

The Andromeda galaxy

b)

The Milky Way galaxy

c)

The Orion galaxy

d)

The Hubble galaxy

6.

Which of these statements is correct?

a)

Planets orbit moons, planets orbit stars

b)

Moons orbit planets, stars orbit planets

c)

Moons orbit stars, stars orbit planets

d)

Moons orbit planets, planets orbit stars

7.

The formula above can be used to calculate the orbital velocity v of any object. It can be re-arranged to find the radius of the orbit.


Which of the following has been correctly re-arranged?

a)
b)
c)
d)
8.

The radius of the Earth's orbit is about 150 million kilometres. In standard form, and given in metres, this is...

a)

1.5 x 108 m

b)

1.5 x 1010 m

c)

1.5 x 1011 m

d)

1.5 x 1012 m

9.

The Earth orbits the Sun in 1 year, which is 3.2 x 107 seconds. The radius of the Earth's orbit is about 150 million kilometres. What is the orbital velocity of the Earth?

a)

4.6 x 103 m/s

b)

29 m/s

c)

4.6 m/s

d)

2.9 x 104 m/s

10.

Astronomers make detailed observations of individual stars. Which measurement will lead to finding the surface temperature of the star?

a)

The colour of the star.

b)

The brightness of the star.

c)

The observed size of the star.

d)

The motion of the star.

11.

Stars that are stable and producing energy from fusion for millions (or billions) of years are called...

a)

Red giant stars.

b)

Brown dwarf stars.

c)

Variable stars.

d)

Main sequence stars.

12.

What is a 'nebula'?

a)

A large cloud of dust and gas.

b)

A small dwarf star.

c)

A type of supernova.

d)

A type of galaxy.

13.

Large stars have a very different evolutionary ending to stars like our Sun. Which of these best describes the end stages of very large stars and extremely large stars?

a)

A

b)

B

c)

C

d)

D

14.
What best describes the doppler effect?
a)
An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
b)
When sound changes pitch
c)
When light changes color
d)
An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.
15.
If a star is being observed from Earth and it's light has shifted towards the blue side of the electromagnetic spectrum it would be...
a)
Moving towards the Earth
b)
Moving away from the Earth
c)
This is a trick question that cannot be answered
d)
It isn't a star, it is a very large blueberry.
16.
If a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be...
a)
Moving towards the Earth
b)
Moving away from the Earth
c)
This is a trick question that cannot be answered
d)
It isn't a star, it is a very large blueberry.
17.
The vast majority of galaxies in our universe are moving away from us.  We know this because we observe __________ in the galaxies absorption spectra.
a)
Redshift
b)
Blueshift
c)
Turbulance
d)
Superposition
18.
Use the image to identify the motion of the object relative to Earth.  Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.
a)
It is not moving
b)
It is moving away from Earth (Redshift)
c)
It is moving towards Earth (Blueshift)
d)
It is moving towards Earth (Redshift)
19.
Use the image to identify the motion of the object relative to Earth.  Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.
a)
It is not moving relative to Earth
b)
It is moving away from Earth (Redshift)
c)
It is moving towards Earth (Blueshift)
d)
It is moving towards Earth (Redshift)
20.
Use the image to identify the motion of the object relative to Earth.  Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.
a)
It is not moving relative to Earth
b)
It is moving away from Earth (Redshift)
c)
It is moving towards Earth (Blueshift)
d)
It is moving towards Earth (Redshift)
21.
An object that is moving VERY fast away from Earth would have ________ than an object that is moving very slow away from Earth.
a)
More Redshift
b)
More Blueshift
c)
Less Redshift
d)
Less Blueshift
22.
An object that is moving VERY fast towards the Earth would have ________ than an object that is moving very slow towards the Earth.
a)
More Redshift
b)
More Blueshift
c)
Less Redshift
d)
Less Blueshift
23.
Which discovery(ies) came from our understanding redshift/ blueshift?
a)
The universe is expanding
b)
Most galaxies are moving away from us
c)
Andromeda galaxy will collide with the Milky way in 3.75 billion years
d)
All of the above (and many more)
24.
When redshift occurs, the perceived frequency of the wave would...
a)
Increase
b)
Decrease
c)
Stay the same
d)
Make bird sounds
25.
When redshift occurs, the perceived WAVELENGTH of the wave would...
a)
Increase
b)
Decrease
c)
Stay the same
d)
Make squirrell sounds
26.
When blueshift occurs, the perceived frequency of the wave would...
a)
Increase
b)
Decrease
c)
Stay the same
d)
Make duck sounds
27.
When blueshift occurs, the perceived WAVELENGTH of the wave would...
a)
Increase
b)
Decrease
c)
Stay the same
d)
Make frog sounds
28.
Red stars are the _____________.
a)
hottest
b)
coolest
c)
biggest
d)
brightest
29.
Blue stars are the _____________.
a)
hottest
b)
coolest
c)
smallest
30.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D
31.

Which star shown below is brightest?

a)

a magnitude -1 star

b)

a magnitude 1 star

c)

a magnitude 2 star

d)

a magnitude 3 star

32.

What small, hot, faint objects are found at B?

a)

neutron stars

b)

black holes

c)

white dwarfs

d)

brown dwarfs

33.
The HR Diagram shows a relationship of a star's surface temperature and its
a)
color
b)
size
c)
apparent magnitude
d)
absolute magnitude
34.
Compared to the rest of the stars, our sun is considered...
a)
Extremely Large and Cold
b)
Small with a medium temperature
c)
Medium size with medium temperature
35.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter

Similar Resources on Wayground

chapter 2:2.1-2.4

30 questions

chapter 2:2.1-2.4

quiz

Worksheet

•

11th Grade

SNC2D Cell Structure and Division

40 questions

SNC2D Cell Structure and Division

quiz

Worksheet

•

10th Grade

SNC1D Static Electricity

36 questions

SNC1D Static Electricity

quiz

Worksheet

•

9th Grade

DRRR LT 2 reviewer

36 questions

DRRR LT 2 reviewer

quiz

Worksheet

•

11th Grade

Simple Machine

35 questions

Simple Machine

quiz

Worksheet

•

6th - 9th Grade

Book (A) Unit 1: Lesson 1 - 6 Quiz

30 questions

Book (A) Unit 1: Lesson 1 - 6 Quiz

quiz

Worksheet

•

6th Grade - Professio...

C7 Further organic chemistry - Triple

37 questions

C7 Further organic chemistry - Triple

quiz

Worksheet

•

10th - 11th Grade