TextBook Solutions for Haryana Board - English Medium Class 8 Science Chapter 11 Force And Pressure

Give two examples each of situations in which you push or pull to change the state of motion of objects.

Give two examples of situations in which applied force causes a change in the shape of an object.

To draw water from a well,we have to ____________ the rope.

A charged body ____________ an uncharged body towards it.

To move a loaded trolley we have to ____________ it.

The north pole of a magnet ____________ the north pole of another magnet.

An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms :

Muscular, contact, non-contact, gravity, friction, shape, attraction

i) To stretch the bow, the archer applies a force that causes a change in its ____________ .

An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms :

Muscular, contact, non-contact, gravity, friction, shape, attraction

ii) The force applied by the archer to stretch the bow is an example of ____________ force.

An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms :

Muscular, contact, non-contact, gravity, friction, shape, attraction

iii) The type of force responsible for a change in the state of motion of the arrow is an example of a ____________ force.

An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms :

Muscular, contact, non-contact, gravity, friction, shape, attraction

(iv) While the arrow moves towards its target, the forces acting on it are due to ____________ and that due to ____________ of air.