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प्रश्न
State the various effects of force.
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उत्तर
Force can produce the following effects:
1. It can move a stationary body.
2. It can stop a moving body.
3. It can change the speed of a moving body.
4. It can change the direction of a moving body.
5. It can change the shape (and size) of a body.
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संबंधित प्रश्न
What is the usual name of the forces which cannot produce motion in a body but only change its shape ?
State whether force is a scalar or a vector quantity?
Fill in the following blank with suitable word :
When a stationary car starts suddenly, the passengers are jerked …………………..
Give one example where a force moves a stationary body.
Give one example where a force stops a moving body.
Give one example where a force changes the speed of a moving body.
What do you understand by the terms “balanced forces” and “unbalanced forces” ? Explain with examples.
A 1000 kg vehicle moving with a speed of 20 m/s is brought to rest in a distance of 50 metres :
(i) Find the acceleration.
(ii) Calculate the unbalanced force acting on the vehicle.
When a toothpaste tube is squeezed, its shape changes. The force responsible for this is an example of :
A fielder pulls his hands backwards after catching the cricket ball. This enables the fielder to :
