Air is thrown on a sail attached to a boat from an electric fan placed on the boat. Will the boat start moving?

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.

In the following situation identify the agent exerting a force and the object on which it acts. State the effect of the force in such case.

Squeezing a piece of lemon between the fingers to extract its juice.

In the following situation identify the agent exerting a force and the object on which it acts. State the effect of the force in such case.

Taking out paste from a toothpaste tube.

In the following situation identify the agent exerting a force and the object on which it acts. State the effect of the force in such case.

A load suspended from a spring while its other end is on a hook fixed to a wall.

A blacksmith hammers a hot piece of iron while making a tool. How does the force due to hammering affect the piece of iron?

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?

Name the forces acting on a plastic bucket containing water held above ground level in your hand. Discuss why the forces acting on the bucket do not bring a change in its state of motion.

A rocket has been fired upwards to launch a satellite in its orbit. Name the two forces acting on the rocket immediately after leaving the launching pad.

When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is due to :

Define 'force'.