Why does an astronaut weigh less on the Moon than on the Earth?

the force of gravity is weaker on the surface of the Moon than on the surface of the Earth.

What can we say about the forces on an object that is not moving?

there must only be one force acting on it

Quiz On Forces: Trivia!

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| By Doconnor86

Doconnor86

Community Contributor

Quizzes Created: 1 | Total Attempts: 3,661

Questions: 7 | Attempts: 3,666 | Updated: Mar 21, 2023

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Questions and Answers

1.

Which of these is the best way to measure a force?
- A.
  
  Using a force meter
- B.
  
  Using a thermometer
- C.
  
  Using a ruler
Correct Answer
A. Using a force meter

Explanation
The best way to measure a force is using a force meter.

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12
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2.

Forces can be
- A.
  
  Pushes only
- B.
  
  Pulls only
- C.
  
  Pushes and pulls
Correct Answer
C. Pushes and pulls

Explanation
Forces can be both pushes and pulls.

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7
0
3.

What is the unit of force called?
- A.
  
  The newton, n
- B.
  
  The neutron, N
- C.
  
  The newton, N
Correct Answer
C. The newton, N

Explanation
The unit of force is the newton, N.

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9
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4.

Why does an astronaut weigh less on the Moon than on the Earth?
- A.
  
  The moon has no atmosphere
- B.
  
  The moon has no gravity
- C.
  
  The force of gravity is weaker on the surface of the Moon than on the surface of the Earth.
Correct Answer
C. The force of gravity is weaker on the surface of the Moon than on the surface of the Earth.

Explanation
An astronaut weighs less on the Moon than on the Earth because the force of gravity is weaker on the surface of the Moon than on the surface of the Earth.

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3
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5.

What is the weight of a 20 kg box on the Earth?
- A.
  
  20N
- B.
  
  2N
- C.
  
  200N
Correct Answer
C. 200N

Explanation
A 20kg box on Earth weighs 200N.

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4
1
6.

What can we say about the forces on an object that is not moving?
- A.
  
  There must only be one force acting on it
- B.
  
  The forces must be balanced
- C.
  
  It must be very heavy
Correct Answer
B. The forces must be balanced

Explanation
If an object is not moving, the forces must be balanced.

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5
1
7.

One way to increase the turning force on a spanner is to:
- A.
  
  Use a shorter spanner
- B.
  
  Use a longer pivot
- C.
  
  Use a longer spanner
Correct Answer
C. Use a longer spanner

Explanation
One way to increase the turning force on a spanner is to use a longer spanner.

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5
0

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Current Version
Mar 21, 2023

Quiz Edited by
ProProfs Editorial Team
May 23, 2010

Quiz Created by
Doconnor86

Quiz On Forces: Trivia!

Which of these is the best way to measure a force?

Forces can be

What is the unit of force called?

Why does an astronaut weigh less on the Moon than on the Earth?

What is the weight of a 20 kg box on the Earth?

What can we say about the forces on an object that is not moving?

One way to increase the turning force on a spanner is to: