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5th CBSE
IMPORTANT
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A single fixed pulley does not increase or decrease the force. How then is it useful as a simple machine?

Important Questions on Simple Machines

EASY
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5.>Chapter 10 - Simple Machines>Exercises>Q 1
Which simple machine helps us only by changing the direction of force?
MEDIUM
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5.>Chapter 10 - Simple Machines>Exercises>Q 1
Which of these is true for a winding road going up a hill?
MEDIUM
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5.>Chapter 10 - Simple Machines>Exercises>Q 2
All simple machines increase force.
EASY
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5.>Chapter 10 - Simple Machines>Exercises>Q 2
In a machine, force is increased if the effort moves a larger distance than the load.
MEDIUM
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5.>Chapter 10 - Simple Machines>Exercises>Q 11
Draw an illustration of a lever that reduces force. Mark the position of the load, fulcrum, and effort on it.
MEDIUM
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5.>Chapter 10 - Simple Machines>Think And Answer>Q 2
Archimedes, the ancient Greek inventor, once said, “Give me a lever long enough, and I can move the earth.” Do you think this can be done?
MEDIUM
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5.>Chapter 10 - Simple Machines>Think And Answer>Q 3
A wheel is not a simple machine because, in itself, it cannot decrease or increase force or change its direction. What is done to make it into a simple machine?
MEDIUM
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5.>Chapter 10 - Simple Machines>Project 1>Q 1

Archimedes used the principle of the screw to make the machine. Draw water from a river. Find out the name given to the machine.

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