Calculation of gravitational force - JSS1 Basic science Past Questions and Answers - page 1
1
What is force?
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A
A push or pull that can change the state of motion of an object.
B
A type of energy
C
A form of matter
D
A type of wave
2
Which of the following is not a fundamental type of force?
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A
Gravitational
B
Electromagnetic
C
Frictional
D
Strong nuclear
3
What law can be used to calculate the gravitational force between two masses?
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A
Newton's Law of Motion
B
Ohm's Law
C
Newton's Law of Universal Gravitation
D
Kepler's Law
4
When two forces acting on an object cancel each other out, what is it called?
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A
Balanced Forces
B
Unbalanced Forces
C
Static Forces
D
Dynamic Forces
5
If the forces acting on an object are unequal, causing a change in its motion, what is it called?
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A
Balanced Forces
B
Unbalanced Forces
C
Static Forces
D
Dynamic Forces
6
Friction is a resistance force that opposes:
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A
Gravity
B
Motion
C
Electricity
D
Sound
7
Which of the following is NOT a use of friction?
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A
Walking
B
Driving vehicles
C
Reducing wear and tear
D
Writing with a pen
8
Friction helps to prevent:
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A
Slipping
B
Acceleration
C
Expansion
D
Melting
9
What is one advantage of friction?
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A
Increases energy efficiency
B
Causes slipping
C
Reduces grip
D
Prevents wear and tear
10
What is one disadvantage of friction?
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A
Prevents slipping
B
Increases efficiency in machines
C
Causes wear and tear
D
Allows better grip
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