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प्रश्न
An inflated balloon was pressed against a wall after it has been rubbed with a piece of synthetic cloth. It was found that the balloon sticks to the wall. What force might be responsible for the attraction between the balloon and the wall?
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उत्तर
On rubbing an inflated balloon with a piece of synthetic cloth, it becomes charged. A charged body attracts an uncharged body. When this charged balloon is pressed against a wall, it sticks to the wall. The force acting between the charged balloon and the wall is the electrostatic force.
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संबंधित प्रश्न
When an elephant drags a wooden log over the land, the forces that are applied on the log are ______, ______ and ______.
Match the following:
| Group ‘A’ | Group ‘B’ | ||
| (i) | An ox pulling a cart | (a) | Magnetic force |
| (ii) | Lifting a heavy iron object with a crane | (b) | Electrostatic force |
| (iii) | Weighing with a spring balance | (c) | Muscular force |
| (iv) | Applying brakes to a bicycle | (d) | Gravitational force |
| (v) | Picking up pieces of paper with a plastic scale | (e) | Frictional force |
Explain in your own words and give one example.
Muscular force
Explain in your own words and give one example.
Electrostatic force
Explain in your own words and give one example.
The force of friction
Why powder is sprinkled on a carrom board?
In what way are we different the force of friction and gravitational force?
Which one of the following forces is a contact force?
An archer shoots an arrow in the air horizontally. However, after moving some distance, the arrow falls to the ground. Name the initial force that sets the arrow in motion. Explain why the arrow ultimately falls down.
Which of the following is NOT a type of non-contact force?
