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Course: Alhussan Physics — Stage 7
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Alhussan Physics — Stage 7

Chapter 1: Energy

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Chapter 2: Forces

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Chapter 3: Sound

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Chapter 4: Electricity

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Chapter 5: The Earth in Space

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Quiz

Physics 2.2 Gravity — Quiz

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  • Questions count: 50
  • Passing grade: B+
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1.
Which term matches this definition? “Attractive force between masses.”
Universal gravitation
Gravity
Ellipse
Tangent
2.
On the Moon g = 1.6 N/kg. What is the weight of a 70 kg astronaut there?
700 N
112 N
44 N
70 N
3.
g at different heights above Earth. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 1
A
B
C
D
4.
Which term matches this definition? “Person who travels in space.”
Balanced forces
Control variable
Water resistance
Astronaut
5.
g on planets (N/kg). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 2
A
B
C
D
6.
True or false? Gravity gets weaker further from a planet.
True
False
7.
Gravity gets ____ further from a planet.
weaker
zero
stronger
the same
8.
g at different heights above Earth. At what value of "Height (km)" is "g (N/kg)" greatest?
Dr Dabour Hub Academy - figure 3
0
5000
1000
400
9.
Which is the correct definition of “Weightlessness”?
Curved path around a planet or star.
Equal and opposite forces.
Feeling of no weight in free fall.
Time for one complete orbit.
10.
Which term matches this definition? “Feeling of no weight in free fall.”
Contact force
Moon
Weightlessness
Orbit
11.
Weight of a 10 kg mass on different bodies. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 4
A
B
C
D
12.
A 900 kg rover on Mars (g = 3.7). Weight?
3330 N
900 N
243 N
9000 N
13.
True or false? Mass is the same everywhere.
True
False
14.
True or false? Astronauts wear spacesuits to breathe.
True
False
15.
Which is the correct definition of “Gravity”?
Non-contact force between magnets.
Shape of the object.
Attractive force between masses.
Constant top speed when drag equals weight.
16.
Which statement is correct?
Mass is measured in kilograms.
A 50 kg person weighs 50 N.
Weight is measured in kg.
Mass changes on the Moon.
17.
There is still ____ in space.
gravity
anti-gravity
magnetism only
no gravity
18.
The bar chart shows g on four planets. On which would a 10 kg mass weigh most?
Dr Dabour Hub Academy - figure 5
Mars
Jupiter
Earth
Saturn
19.
g at different heights above Earth. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 6
A
B
C
D
20.
How does gravitational field strength change as you move away from a planet?
It decreases
It increases
It stays the same
It becomes negative
21.
Which statement is correct?
There is no gravity in space.
Jupiter has stronger gravity than Earth.
Gravity gets stronger further away.
Gravity can repel.
22.
On the Moon g is about ____ N/kg.
1.6
25
0
10
23.
Weight ____ on the Moon.
doubles always
stays the same
disappears
changes
24.
Weight of a 10 kg mass on different bodies. Which has the greatest value?
Dr Dabour Hub Academy - figure 7
Earth
Jupiter
Mars
Moon
25.
Weight of a 10 kg mass on different bodies. What is the value for Earth?
Dr Dabour Hub Academy - figure 8
250
16
37
100
26.
Which statement is correct?
Moon gravity is double Earth's.
A 50 kg person weighs 50 N.
Gravity pulls you towards the centre of the Earth.
Jupiter has weaker gravity than Earth.
27.
Which statement is correct?
Gravity gets stronger further away.
There is no gravity in space.
On Earth g = 10 N/kg.
Mass changes on the Moon.
28.
Which is the correct definition of “Gravitational field strength”?
Time to fall or travel.
Force acting at a distance, e.g. gravity.
Rounded front and tapering tail.
Weight per kilogram, g.
29.
Which statement is NOT correct?
Gravity is always attractive.
Weight = mass ÷ g.
A 2 kg bag weighs 20 N on Earth.
A 50 kg person weighs 500 N on Earth.
30.
Weight against mass on Earth. At what value of "Mass (kg)" is "Weight (N)" smallest?
Dr Dabour Hub Academy - figure 9
3
4
0
5
31.
A 6 kg bag has what weight on Earth? (g = 10 N/kg)
16 N
6 N
600 N
60 N
32.
True or false? Weight is measured in newtons.
True
False
33.
g at different heights above Earth. What is the value of "g (N/kg)" when "Height (km)" is 10000?
Dr Dabour Hub Academy - figure 10
1.5
9.8
8.7
7.3
34.
g at different heights above Earth. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 11
A
B
C
D
35.
Weight of a 10 kg mass on different bodies. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 12
A
B
C
D
36.
Which statement is NOT correct?
Weight = mass × g.
Gravity is always attractive.
Jupiter has stronger gravity than Earth.
Gravity can repel.
37.
The diagram shows a falling object at constant speed. What does this show?
Dr Dabour Hub Academy - figure 13
Weight is bigger
Air resistance is zero
There is no gravity
Forces are balanced
38.
Which is the correct definition of “W = m × g”?
Quantity with size and direction.
Slightly squashed circle; shape of planetary orbits.
Weight equation.
Direction gravity pulls.
39.
True or false? Jupiter has stronger gravity than Earth.
True
False
40.
g on planets (N/kg). Which has the greatest value?
Dr Dabour Hub Academy - figure 14
Mercury
Jupiter
Earth
Venus
41.
Which term matches this definition? “Weight per kilogram, g.”
Terminal velocity
Theory
Gravitational field strength
Wallpaper paste
42.
Weight of a 10 kg mass on different bodies. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 15
A
B
C
D
43.
An object weighs 700 N on Earth. Mass?
438 kg
700 kg
7000 kg
70 kg
44.
True or false? Gravity can repel.
True
False
45.
g at different heights above Earth. Calculate the percentage change in "g (N/kg)" from 0 to 10000.
Dr Dabour Hub Academy - figure 16
−85%
15%
85%
−553%
46.
Which statement is NOT correct?
Larger masses have stronger gravity.
Things fall because of gravity.
Weight is measured in kg.
Weight is measured in newtons.
47.
A 100 kg astronaut on the Moon (g = 1.6). Weight?
1000 N
62 N
160 N
100 N
48.
An object weighs 150 N on Earth. Mass?
94 kg
1500 kg
150 kg
15 kg
49.
g at different heights above Earth. By how much does "g (N/kg)" change between 0 and 10000?
Dr Dabour Hub Academy - figure 17
10.4
1.5
11.3
8.3
50.
Which statement is correct?
Weight is measured in kg.
Jupiter has weaker gravity than Earth.
Bathroom scales really measure weight.
A 50 kg person weighs 50 N.
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Part of Chapter 2: Forces — see every lesson and quiz in this unit.
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