MEDIUM
5th CBSE
IMPORTANT
Earn 100

Draw and name four simple machines at a building site.

Important Questions on Energy and Work

MEDIUM
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Experiment>Q 1

Take a tin sheet and place it on water taken in a glass trough. What happens to the tin sheet? 

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MEDIUM
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Experiment>Q 2

Roll a tin sheet and put it into the water in the glass trough. What happens to the tin sheet? 

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

Unfold the tin sheet and bend its edges so that it forms a tray or a flat box. Place this tin tray in the water. What will happen?Question Image

EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 1
Why do we use machines? Name the five main types of simple machines.
EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 1
What are the uses of wheel and axle, inclined planes, and a fixed pulley?
EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 1
How would you show that a screw is actually an inclined plane?
EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 1
Why do ships float higher in sea-water than in river water?
EASY
5th CBSE
IMPORTANT
Frank PRIMARY SCIENCE.>Chapter 11 - Energy and Work>Let Us Solve>Q 1
Why do certain objects float in water while others sink?