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Space Revision -part 1

Total questions: 110

Worksheet time: 2hrs 36mins

Name
Class
Date
1.

The force that causes objects with mass to attract one another.

a)

Weight

b)

Gravity

c)

Mass

d)

Magnetism

2.

The gravitational attraction between two objects would increase if both masses are –

a)

increased, and the distance between them is increased.

b)

increased, and the distance between them is decreased.

c)

decreased, and the distance between them is decreased.

d)

decreased, and the distance between them is increased.

3.

Why do planets orbit the Sun?

a)

The Sun is the only celestial object that has a gravitational pull.

b)

The Sun’s chemical composition makes it attract planets.

c)

Only celestial bodies that emit light, like the Sun, can be at the center of an orbit.

d)

The Sun is the most massive object in our solar system, so it exerts the greatest gravitational pull.

4.

Gravity can be defined as the –

a)

force of attraction between two or more masses.

b)

friction created when two objects are in contact.

c)

energy given off by stars due to nuclear reactions.

d)

path an object follows as it moves through space.

5.
Gravity attracts all objects towards one another.
a)
False
b)
True
c)
It depends
6.
Any object with mass has gravity.
a)
True
b)
Sometimes
c)
False
d)
Never
7.
As distance between two objects increase the pull of gravity 
a)
Increases
b)
Decreases
c)
Stays the same
8.
A person would weigh less on on the Moon than on the Earth because . . .
a)
Moon has more mass, and therefore more gravity
b)
Moon has less mass, and therefore more gravity
c)
Moon has more mass, and therefore less gravity
d)
Moon has less mass and therefore less gravity
9.

Which model has greater gravitational attraction.

a)

model A

b)

model B

c)

both models have equal gravity

10.

When will the gravity between two objects be the LEAST?

a)

when the masses of both objects is small and the objects are close together

b)

when the masses of both objects is small and the objects are far apart

c)

when the masses of both objects is large and the objects are close together

d)

when the masses of both objects is large and the objects are far apart

11.

What two things determine the gravity of an object?

a)

mass & weight

b)

mass & distance

c)

density & mass

d)

volume & distance

12.
Without gravity we would________. 
a)
Float away
b)
Stay in the ground
c)
Nothing would happen.
d)
I don't know
13.

Gravity is greatest when two objects are larger and closer together.

a)

True

b)

False

14.

Gravity is a...

a)

Superhero

b)

Force

c)

Place in Alaska

15.
A measure of the amount of matter in an object
a)
mass
b)
weight
c)
gravity
d)
pounds
16.
As mass increases, what happens to gravitational force?
a)
increases
b)
decreases
c)
stays the same
d)
i don't know
17.

The further the distance between objects, the ...

a)

the stronger the gravitational attraction becomes

b)

the weaker the gravitational attraction becomes

c)

the gravitational attraction stays the same

18.

Which statement is true?

a)

An object will have the same mass on different planets but a different weight

b)

An object will have a different mass on different planets but the weight will stay the same

c)

An object will have the same mass and weight on different planets

19.

What unit is weight measured in?

a)

Grams

b)

Kilograms

c)

Newtons

d)

N/Kg

20.

What unit is mass measured in?

a)

Grams

b)

Kilograms

c)

Newtons

d)

N/Kg

21.

The sun is at the centre of our solar system, it is a ....

a)

planet

b)

star

c)

galaxy

d)

moon

22.

How many planets orbit around the sun?

a)

7

b)

9

c)

8

d)

10

23.

What planet is closest to the sun?

a)

Neptune

b)

Earth

c)

Mercury

d)

Venus

24.

How long does it take for the Earth to complete one rotation about its axis?

a)

24 hours

b)

1 month

c)

1 year

25.

How long does it take for the Earth to orbit the sun once?

a)

24 hours

b)

1 month

c)

365 1/4 days

26.

What causes the seasons?

a)

The Earths rotation

b)

The Earths tilt

c)

The moon

d)

The weather

27.
The force of gravity acting on an object is the object's ______.
a)
mass
b)
matter
c)
weight 
d)
friction 
28.
The amount of matter in an object is 
a)
pressure
b)
weight
c)
mass
d)
force
29.
Which of the following never changes no matter where in the universe?
a)
weight
b)
force
c)
mass
d)
pounds
30.
A person would weigh less on on the Moon than on the Earth because . . .
a)
Moon has more mass, and therefore more gravity
b)
Moon has less mass, and therefore more gravity
c)
Moon has more mass, and therefore less gravity
d)
Moon has less mass and therefore less gravity
31.
If Earth's mass was cut in half, what would happen to your mass?
a)
increase because gravitational force increases
b)
decrease because gravitational force decreases
c)
decrease because gravitational force increases
d)
nothing, mass is not affected by gravitational force
32.
The force of gravity on Jupiter is a little more than 2 times the gravitational force on Earth. If an object has a mass of 50 kg and a weight of 490 N on Earth, what would be the object's approximate mass and weight on Jupiter?
a)
50 kg and 490 N
b)
100 kg and 490 N
c)
50 kg and 980 N
d)
100 kg and 980 N
33.
Gravity attracts all objects towards one another.
a)
False
b)
True
c)
It depends
34.
What is gravity?
a)
A force
b)
Energy
c)
A push
d)
All of them
35.
If an object mass =30 Kg on the Earth, what would be it's weight on Earth?
a)
30 N
b)
300 kg
c)
3000N
d)
300 N
36.
If the mass of an object is 1000 kg on Earth, what is it's mass on the moon?
a)
10kg
b)
100kg
c)
1000kg
d)
10,000kg
37.

What is missing?

a)

D

b)

N

c)

W

d)

L

38.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
mass and distance 
b)
mass and matter
c)
distance and weight 
d)
weight and mass
39.
If a bowling ball and a feather were dropped at the same time, in a room with no air resistance (vacuum), which object will hit the ground first?
a)
Bowling Ball
b)
Feather
c)
Both would hit at the same time
d)
Neither one would hit the ground because air is what pushing things down.
40.
Which system has the greater gravitational attraction between the two objects (if any)?
a)
System A
b)
System B
c)
Same gravitational attraction fro System A and System B
41.
Which model has greater gravitational attraction (if any)
a)
Model A
b)
Model B
c)
Both Model A and Model B (same gravity)
42.

Why do all of the planets orbit the sun rather than Earth?

a)

the sun has more mass

b)

the sun is a star

c)

the Earth is heavier

d)

the sun is in the middle of the milky way

43.

Weight is constant.

a)

True

b)

False

44.

You have a ball with a weight of 76N. What is the mass of the ball?

a)

76N

b)

76kg

c)

7.6kg

d)

7.6N

45.

What do you use to measure the weight of an object?

a)
b)
c)
d)
46.

If the weight of a body on the Earth's surface is 600 N, what would be it's weight in the space?

a)

600 N

b)

less than 600 N

c)

more than 600 N

47.

A runner, jumping over a hurdle.

a)

Balanced Force

b)

Unbalanced Force

48.

A lamp sitting on a table.

a)

Balanced Force

b)

Unbalanced Force

49.

A car accelerating around a mountain curve.

a)

Balanced Force

b)

Unbalanced Force

50.

Two ice skaters moving in a straight line at a constant speed.

a)

Balanced Force

b)

Unbalanced Force

51.

A skier skiing through flags in a race down the mountain.

a)

Balanced Force

b)

Unbalanced Force

52.

A book sitting on a shelf.

a)

Balanced Force

b)

Unbalanced Force

53.

A gymnast on a balance beam doing a backflip.

a)

Balanced Force

b)

Unbalanced Force

54.

Cars in a NASCAR race speeding around the track.

a)

Balanced Force

b)

Unbalanced Force

55.

A soccer ball sitting on the ground motionless.

a)

Balanced Forces

b)

Unbalanced Forces

56.

A rocket lifting off the launch pad.

a)

Balanced Force

b)

Unbalanced Force

57.

What happens to the speed of an object as an unbalanced force acts on it?

a)

It increases or decreases.

b)

It increases only.

c)

It decreases only.

d)

It stays the same.

58.

What happens to the position of an object as an unbalanced force acts on it?

a)

It causes no reaction.

b)

It causes gravity.

c)

It causes movement.

d)

It becomes balanced.

59.

What happens to the direction of an object as an unbalanced force acts on it?

a)

It moves in the same direction as the force.

b)

It doesn’t change direction at all.

c)

It moves in the opposite direction of the force.

d)

Its speed changes.

60.

An object at rest needs an ______________________force in order to move.

a)

Gravitational

b)

Balanced

c)

Unbalanced

d)

Air Resistance

61.

A push or a pull is the definition of a ____________________.

a)

Gravity

b)

Air Resistance

c)

Friction

d)

Force

62.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move up. 
63.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move in both directions. 
64.

What is the resultant force?

a)

30 N left

b)

25 N right

c)

5 N left

d)

55 N right

65.

What is the resultant force?

a)

40 N left

b)

0 N Balalnced

c)

400 N right

d)

40 N right

66.

Calculate the resultant force.

a)

60N, Left

b)

40N, Right

c)

0N

d)

60N, Right

67.

Calculate the resultant force.

a)

40N, Left

b)

40N, Right

c)

0N, Balanced

d)

75N, Right

68.

These forces are...

a)

Balanced

b)

Unbalanced

69.

These forces are...

a)

Balanced

b)

Unbalanced

70.

A scalar is has magnitude _____.

a)

and direction.

b)

and no direction.

71.
The _______ of two or more vectors is the sum of the vectors.
a)
components
b)
scalar
c)
resultant
d)
magnitude
72.
Length
a)
Vector
b)
Scalar
73.
Displacement
a)
Vector
b)
Scalar
74.

Which of the following is a vector quantity?

a)

energy

b)

velocity

c)

mass

d)

time

75.

A vector contains more information than a scalar. What is the extra information?

a)

acceleration

b)

direction

c)

resultant

d)

size

76.

Which of these is a non-contact force?

a)

Friction

b)

Air resistance

c)

Upthrust

d)

Gravity

77.

Which radiation can only be stopped by many centimetres of lead?

a)

Alpha

b)

Beta

c)

Gamma

d)

Neutron

78.

Which radiation is the most dangerous inside the human body?

a)

Alpha

b)

Beta

c)

Gamma

d)

Neutron

79.

What is the equation for calculating density?

a)

Density = mass/volume

b)

Density = mass x volume

c)

Density = volume/mass

d)

Density = mass + volume

80.

Solid, liquid or gas? The particles are close together but not in a regular pattern

a)

Solid

b)

Liquid

c)

Gas

81.

Solid, liquid or gas? The particles move at very high speeds in a random manner

a)

Solid

b)

Liquid

c)

Gas

82.
Mercury, Venus, Earth, and Mars are called.....?
a)
Jovian Planets
b)
Awesome Sauce Planets
c)
Gas Giants
d)
Inner Planets
83.
What do we call Jupiter, Saturn, Uranus and Neptune?
a)
Outer Planets
b)
Terrestrial Planets
c)
Inner Planets
d)
Oort Cloud
84.
What is the only planet known to contain life?
a)
Mars
b)
Earth
c)
Neptune
d)
Uranus
85.
What characteristic is Jupiter known for?
a)
Rings of ice and dust
b)
Great Red Spot
c)
Olympus Mons
d)
Fire
86.
Which planet is now characterized as a dwarf planet?
a)
Neptune
b)
Pluto
c)
Miss Best
d)
Coca-cola
87.
What is one factor that makes life on Earth possible?
a)
Water
b)
High gravity
c)
Elliptical Orbit
d)
Hydrogen
88.
Which is the largest object in our solar system?
a)
Sun
b)
Jupiter
c)
Earth
d)
Pluto
89.
Which planet is closest to the sun?
a)
Uranus
b)
Mercury
c)
Neptune
d)
Earth
90.
Which is the second closest planet to the sun?
a)
Earth
b)
Saturn
c)
Venus
d)
Mercury
91.
Which planet is third from the sun?
a)
Mars
b)
Pluto
c)
Venus
d)
Earth
92.
Which is the fourth planet from the sun?
a)
Mars
b)
Saturn
c)
Earth
d)
Jupiter
93.
Which planet is fifth from the sun?
a)
Saturn
b)
Jupiter
c)
Mars
d)
Earth
94.
Which is the sixth planet from the sun?
a)
Earth
b)
Uranus
c)
Saturn
d)
Neptune
95.
Which planet is seventh from the sun?
a)
Saturn
b)
Earth
c)
Venus
d)
Uranus
96.

These are the 4 planets (Mercury, Venus, Earth, Mars) are known as

a)

terrestrial planets

b)

gas giants

c)

dwarf planets

d)

solar planets

97.

These are the four planets the Sun; Jupiter, Saturn, Uranus, and Neptune are classified as

a)

terrestrial planets

b)

gas giants

c)

solar planets

d)

the best planets

98.

Where is the Asteroid Belt located in the Solar System?

a)

near Neptune

b)

between Mercury and Venus

c)

between Mars and Jupiter

d)

around the Sun

99.
What is similar about all of the Outer Planets?
a)
small
b)
large
c)
few moons
d)
takes a short amount of time to go around the sun
100.
What is a planet?
a)
a group of stars that forms a pattern in the sky
b)
a large ball of hot gases that gives off heat and light
c)
a large ball or rock or gas that moves around the sun
d)
a toy aliens play with
101.
The sun goes around the Earth.
a)
True
b)
False
102.

What is at the middle of a Heliocentric system?

a)

Mars

b)

Moon

c)

Sun

d)

Earth

103.
  What does "geo-" mean?
a)
Earth
b)
sun
c)
Center
104.

What is the biggest difference between the Geocentric Model and the Heliocentric Model?

a)

the shape of the planets' orbits

b)

the movement of the moon

c)

the center of the solar system

105.

What does the Heliocentric system look like?

a)
b)
c)
d)
106.

What does the Heliocentric system look like?

a)
b)
c)
d)
107.

What does the Geocentric system look like?

a)
b)
c)
d)
108.

Who proposed the Heliocentric system?

a)

Copernicus

b)

Ptolemy

c)

Aristotle

d)

Galileo

109.

Who supported the Geocentric system?

a)

Ptolemy

b)

Aristotle

c)

Copernicus

d)

Galileo

110.

What is at the middle of a Geocentric system?

a)

Sun

b)

Neptune

c)

Earth

d)

The Universe

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