Simple Machines - JSS1 Basic technology Past Questions and Answers - page 1
1
What are simple machines primarily designed to do?
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A
Generate electricity
B
Multiply force
C
Control temperature
D
Create motion
2
Which of the following is NOT considered a type of simple machine?
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A
Lever
B
Gear
C
Wheel
D
Pulley
3
Which type of simple machine consists of a rigid bar pivoted on a fulcrum?
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A
Pulley
B
Lever
C
Gear
D
Wheel
4
In which class of lever is the load located between the fulcrum and the effort?
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A
First class lever
B
Second class lever
C
Third class lever
D
Fourth class lever
5
What is the primary function of a pulley?
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A
To change the direction of force
B
To multiply force
C
To generate electricity
D
To store energy
6
Which type of pulley has a fixed axis and changes the direction of force?
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A
Fixed pulley
B
Movable pulley
C
Compound pulley
D
Simple pulley
7
Gears are primarily used for:
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A
Changing colour
B
Transmitting power
C
Generating heat
D
Absorbing sound
8
Which type of gear train is used to change the speed and torque of motion?
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A
Simple gear train
B
Compound gear train
C
Rack and pinion
D
Worm gear train
9
Where might you find levers in everyday life?
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A
In aeroplanes
B
In playgrounds
C
In microwaves
D
In refrigerators
10
What is the function of a second-class lever?
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A
To balance weight
B
To change direction
C
To multiply force
D
To distribute load
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