EASY
5th CBSE
IMPORTANT
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An object that floats in water will sink in mercury.

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Important Questions on Energy and Work

EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 3
A crow-bar is an example of a first-class lever.
EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 3
An inclined plane makes work easier for us.
EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 3
It is easier to get a screw with a bigger pitch into a piece of wood than a screw with a smaller pitch.
MEDIUM
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 3
A windlass is a continuously moving lever.
EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 3
An object with high density floats in water.
MEDIUM
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 4

In the following diagram name three points and the class of the levers. F stands for a fulcrum, E for effort and L for a load.

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EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Things To Do>Q 1

In the picture given below write what use this man is making of a pulley.

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EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Things To Do>Q 3

Look at this picture of a claw-hammer pulling out a nail. Put X by the fulcrum.

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