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Friction can cause noise in machines.

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Important Questions on Force, Work and Energy

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Environmental Studies>Exploring the World>Force, Work and Energy>Force
A push or a pull is a form of _____.
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Environmental Studies>Exploring the World>Force, Work and Energy>Force
Name the force applied while pushing a door to open it.
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Environmental Studies>Exploring the World>Force, Work and Energy>Force
The push or pull of an object is called
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Environmental Studies>Exploring the World>Force, Work and Energy>Force
A force between iron nails and a magnet is an example of:
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Environmental Studies>Exploring the World>Force, Work and Energy>Force
_____ is the force applied when there is physical contact.
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Environmental Studies>Exploring the World>Force, Work and Energy>Force

Match the columns.

Column 1 Column 2
1. Push or pull                   a. deep inside the Earth
2. Animal fibre b. obtained from petroleum
3. Polluted water c. force
4. Plastic d. diseases
5. Petroleum e. wool
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Environmental Studies>Exploring the World>Force, Work and Energy>Force
When we lift our school bag, a force is applied to it.
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Environmental Studies>Exploring the World>Force, Work and Energy>Force
What is force?
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Environmental Studies>Exploring the World>Force, Work and Energy>Force
The upward force exerted by water that pushes an object is called _____.
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Environmental Studies>Exploring the World>Force, Work and Energy>Force
What is force?
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Environmental Studies>Exploring the World>Force, Work and Energy>Force

Force is a

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Environmental Studies>Exploring the World>Force, Work and Energy>Force
_____ force exerts an upward thrust.
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Environmental Studies>Exploring the World>Force, Work and Energy>Force

A child bends his plastic measuring scale as shown in the diagram. Is he pushing or pulling the scale? What is the effect of the force on the scale?

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Environmental Studies>Exploring the World>Force, Work and Energy>Force
What is force?
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Environmental Studies>Exploring the World>Force, Work and Energy>Force
A _____ or _____ is called a force.
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Environmental Studies>Exploring the World>Force, Work and Energy>Force
What is force?
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Environmental Studies>Exploring the World>Force, Work and Energy>Force

In which of the following pictures is the person doing more work?

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Environmental Studies>Exploring the World>Force, Work and Energy>Force
A force can stop a moving object.
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Environmental Studies>Exploring the World>Force, Work and Energy>Force
Chinmaya was playing with a toy car. He could easily push it on the tiled floor but as he reached the carpet, he had to apply more force to push; explain why?
 
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Environmental Studies>Exploring the World>Force, Work and Energy>Force
The force of water can be used to turn a