Question

3. Arun inflated a balloon. (2)

Case 1 -

After rubbing the balloon with a piece of synthetic cloth, he tried to press

it against a wall. It was found that the balloon sticks to the wall.

Case 2 -

In his second attempt, he tried to press the balloon against the wall with a

stronger force which led to the balloon bursting.

a. What force might be responsible for the attraction between the balloon

and the wall in Case 1?​

Answer 1

Answer:

The force responsible for the attraction between the balloon and the wall is electrostatic force.

On rubbing the balloon with a piece of synthetic cloth, both the balloon and cloth acquires equal and opposite charges. Opposite charge develops on the wall due to induction and both balloon and wall get attracted to each other when balloon is pressed against the wall.

Answer 2

Answer:

1. electrostatic force
2. An electrostatic force is responsible for the attraction between the ball and the wall. When we rub the balloon with a synthetic cloth, it gets charged and when the balloon is taken near the wall, it will get attracted to the uncharged wall because of the electrostatic force.

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