MEDIUM
5th CBSE
IMPORTANT
Earn 100

What type of simple machine is a screw jack which is used to lift cars for replacing a punctured tyre?

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Important Questions on Simple Machines

HARD
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5>Chapter 10 - Simple Machines>Exercises>Q 4
What is the difference between a simple and a complex machine?
MEDIUM
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5>Chapter 10 - Simple Machines>Exercises>Q 5
Name the main types of simple machines.
MEDIUM
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5>Chapter 10 - Simple Machines>Exercises>Q 6
What is a wheel and axle arrangement?
MEDIUM
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5>Chapter 10 - Simple Machines>Exercises>Q 7
Roads on hills are made to have very gentle slopes. Why? 
MEDIUM
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5>Chapter 10 - Simple Machines>Exercises>Q 8
List two ways in which a screw is more useful than a nail.
MEDIUM
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5>Chapter 10 - Simple Machines>Exercises>Q 9
How does a screw jack work? 
MEDIUM
5th CBSE
IMPORTANT
AWARENESS SCIENCE Book 5>Chapter 10 - Simple Machines>Exercises>Q 10
A single fixed pulley does not increase or decrease the force. How then is it useful as a simple machine?
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.