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Space (5th Form)

Total questions: 49

Worksheet time: 25mins

Name
Class
Date
1.

How many stars are there in a galaxy?

a)

1

b)

Millions

c)

Billions

d)

Trillions

e)

Gajillions

2.

How many galaxies are there in the universe?

a)

1

b)

Millions

c)

Billions

d)

Trillions

e)

Gajillions

3.

How many stars are there in our solar system?

a)

1

b)

Millions

c)

Billions

d)

Trillions

e)

Gajillions

4.

What type of body has orbit type A

a)

Moon

b)

Satelliete

c)

Comet

d)

Planet

e)

Meteor

5.

What type of body has orbit type B

a)

Moon

b)

Asteroid

c)

Comet

d)

Planet

e)

Meteor

6.

What type of body has orbit type C

a)

Moon

b)

Satelliete

c)

Comet

d)

Planet

e)

Meteor

7.
Which force is bigger
a)
The pull of the Sun on the Earth
b)
The pull of the Earth on the Sun
c)
Neither, they are the same
d)
Impossible to say
8.
What is the name of our galaxy
a)
The Milky Way
b)
The Solar System
c)
Andromeda
d)
Sirius
e)
Nebula
9.
Gravitational field strength of planets
a)
Varies with based on mass and radius
b)
Varies based on mass
c)
Varies based on radius
d)
Varies based on distance from the Sun
e)
Varies based on orbital speed
10.

What is the equation which links orbital speed, orbital radius and time period?

a)

orbital speed = orbital radius / time period

b)

orbital speed = 2 × π × orbital radius / time period

c)

orbital speed = time period / orbital radius

d)

orbital speed = time period / 2 × π × orbital radius

e)

orbital speed = orbital radius x time period

11.

What is the equation which links orbital speed, orbital radius and time period?

a)

r = 2π / (time period × orbital speed)

b)

r= 2π × (time period × orbital speed)

c)

r = time period / orbital speed

d)

r = (time period × orbital speed) / 2π

e)

r = (2π × time period) / orbital speed

12.
What are the hottest stars?
a)
O
b)
B
c)
A
d)
K
e)
M
13.
What are the coolest stars?
a)
O
b)
B
c)
A
d)
K
e)
M
14.
What are the bluest stars?
a)
O
b)
B
c)
A
d)
K
e)
M
15.
What are the redest stars?
a)
O
b)
B
c)
A
d)
K
e)
M
16.
What are the hottest stars?
a)
Blue ones
b)
Green ones
c)
White ones
d)
Red ones
e)
Christmas ones
17.
What are the coolest stars?
a)
Blue ones
b)
Green ones
c)
White ones
d)
Red ones
e)
Christmas ones
18.
What are the bluest stars?
a)
Really really hot ones
b)
Hot ones
c)
Mediumly hot ones
d)
Cool ones
e)
Really really cool ones
19.
What are the redest stars?
a)
Really really hot ones
b)
Hot ones
c)
Mediumly hot ones
d)
Cool ones
e)
Really really cool ones
20.

If two planets have the same mass, which will have the greater gravitational field strength?

a)

The heavier one

b)

The bigger one

c)

The smaller one

d)

The one closer to the sun

e)

The one further from the sun

21.

If two planets have the same radius, which will have the greater gravitational field strength?

a)

The heavier one

b)

The bigger one

c)

The smaller one

d)

The one closer to the sun

e)

The one further from the sun

22.

What is the equation which links orbital speed, orbital radius and time period?

a)

T = 2πr ÷ orbital speed

b)

T = 2πr × orbital speed

c)

T = r ÷ orbital speed

d)

T = r ÷ (2π × orbital speed)

e)

T = (2π × r) ÷ orbital speed

23.
The hottest stars are …
a)
blue
b)
white
c)
orange
d)
yellow
e)
red
24.
The coldest stars are …
a)
red
b)
white
c)
orange
d)
yellow
e)
blue
25.
In the life cycle of a star, what does a nebula become?
a)
Main sequence star
b)
Red Giant
c)
White dwarf
d)
Supernova
e)
Neutron star
26.
In the life cycle of a star, what does a main sequence star become?
a)
Red giant
b)
Main sequence star
c)
White dwarf
d)
Supernova
e)
Black hole
27.
In the life cycle of a star, what does a less massive red giant star become?
a)
White dwarf
b)
Black dwarf
c)
Supernova
d)
Neutron star
e)
Black hole
28.
In the life cycle of a star, what does a more massive red giant star become?
a)
Supernova
b)
Black dwarf
c)
White dwarf
d)
Neutron star
e)
Black hole
29.
In the life cycle of a star, what does a more massive supernova remnant become?
a)
Black hole
b)
Neutron star
c)
Black dwarf
d)
Nebula
e)
Main sequence star
30.
In the life cycle of a star, what does a less massive supernova remnant become?
a)
Neutron star
b)
Black hole
c)
Black dwarf
d)
Nebula
e)
Main sequence star
31.
On the Hertzsprung-Russell diagram, where are the hot, bright stars found?
a)
Top Left
b)
Top Right
c)
Bottom Left
d)
Bottom Right
e)
Centre
32.
On the Hertzsprung-Russell diagram, where are the cool, bright stars found?
a)
Top Right
b)
Bottom Left
c)
Bottom Right
d)
Top Left
e)
Centre
33.
On the Hertzsprung-Russell diagram, where are the hot, dim stars found?
a)
Bottom Left
b)
Bottom Right
c)
Top Left
d)
Top Right
e)
Centre
34.
On the Hertzsprung-Russell diagram, where are the cool, dim stars found?
a)
Bottom Right
b)
Top Left
c)
Top Right
d)
Bottom Left
e)
Centre
35.
On the Hertzsprung-Russell diagram, where are the red giant stars found?
a)
Centre Right
b)
Centre Left
c)
Top Left
d)
Bottom Right
e)
Bottom Left
36.
On the Hertzsprung-Russell diagram, where are the white dwarf stars found?
a)
Bottom Left
b)
Centre Right
c)
Top Left
d)
Top Right
e)
Bottom Right
37.
On the Hertzsprung-Russell diagram, where are the brightest stars found?
a)
Top
b)
Centre
c)
Bottom
d)
Right
e)
Left
38.
On the Hertzsprung-Russell diagram, where are the dimmest stars found?
a)
Bottom
b)
Centre
c)
Top
d)
Right
e)
Left
39.
On the Hertzsprung-Russell diagram, where are the hottest stars found?
a)
Left
b)
Centre
c)
Top
d)
Bottom
e)
Right
40.
On the Hertzsprung-Russell diagram, where are the coolest stars found?
a)
Right
b)
Centre
c)
Top
d)
Bottom
e)
Left
41.
On the Hertzsprung-Russell diagram, where are the most blue stars found?
a)
Left
b)
Centre
c)
Top
d)
Bottom
e)
Right
42.
On the Hertzsprung-Russell diagram, where are the most red stars found?
a)
Right
b)
Centre
c)
Top
d)
Bottom
e)
Left
43.

 vc=Δλλ\frac{v}{c}=\frac{\Delta\lambda}{\lambda}  



In the red shift equation, what does λ represent?

a)

lab wavelength

b)

measured wavelength from star

c)

change in wavelength

d)

recieved wavelength

44.

Light from Star A is a lot redder than the same light from Star B. Both are redder than they should be. Which of these is true?

a)

Star A is moving away from us faster than Star B

b)

Star A is moving towards us faster than Star B

c)

Star B is moving away from us faster than Star A

d)

Star B is moving towards us faster than Star A

45.

Light from a star is red shifted. This tells us....

a)

The star is moving away from us.

b)

The star is moving towards us.

c)

The is becoming a red giant.

d)

The star has more helium in it than normal.

46.

Light from a star is blue shifted. This tells us....

a)

The star is moving away from us.

b)

The star is moving towards us.

c)

The is becoming a blue giant.

d)

The star has more helium in it than normal.

47.

The most distant stars in the universe have...

a)

The greatest red shift

b)

The lowest red shift

c)

The greatest blue shift

d)

The lowest blue shift

e)

None of the above

48.

When stars move away from us they have..

a)

red shift

b)

blue shift

c)

rainbow sprinkle shift

d)

green shift

e)

night shift

49.

When stars move towards us they have..

a)

red shift

b)

blue shift

c)

rainbow sprinkle shift

d)

green shift

e)

night shift

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