Forces and Friction - JSS2 Basic technology Past Questions and Answers - page 1
1
What type of force pulls objects towards the centre of the Earth?
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A
Frictional force
B
Gravitational force
C
Magnetic force
D
Electrostatic force
2
Which force opposes the motion of objects sliding past each other?
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A
Gravitational force
B
Magnetic force
C
Frictional force
D
Normal force
3
What type of force is exerted by magnets?
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A
Gravitational force
B
Frictional force
C
Magnetic force
D
Tensional force
4
Which force occurs between charged particles?
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A
Gravitational force
B
Magnetic force
C
Frictional force
D
Electrostatic force
5
What is the main function of lubricants?
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A
To increase friction
B
To reduce friction
C
To create more heat
D
To polish surfaces
6
Which type of friction occurs when a book rests on a table without moving?
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A
Static friction
B
Kinetic friction
C
Rolling friction
D
Fluid friction
7
What technique is used to reduce friction in machinery?
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A
Increasing surface roughness
B
Removing lubricants
C
Using ball bearings
D
Applying more weights
8
Which force supports the weight of an object resting on a surface?
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A
Gravitational force
B
Normal force
C
Magnetic force
D
Frictional force
9
What is the effect of friction on moving parts in a machine?
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A
Reduces efficiency
B
Increases speed
C
Prevents wear and tear
D
Cools the parts
10
Which of the following is a method to reduce friction between surfaces?
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A
Increasing roughness
B
Removing lubricants
C
Polishing the surfaces
D
Applying more force
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