In walking the pressure on the ground is more as compared to that in standing on the ground. Explain this statement.

Two women are of the same weight. One wears sandals with pointed heels while the other wears sandals with flat sales. Which one would feel more comfortable while walking on a sandy beach? Give reasons for your answer .

Observe the vessels A, B, C and D as shown in figure carefully.

Volume of water taken in each vessel is as shown. Arrange them in the order of decreasing pressure at the base of each vessel. Explain.

It is difficult to cut cloth using a pair of scissors with blunt blades. Explain.

In physics class teacher ask to his student that a man carrying a load of 50 N in his hand pulling it. The area of palm where the load act is 5 cm². Then
(a) Determine the pressure acting on the fingers of man.
(b) Also, find the pressure acting if the man carrying the same load by keeping it on the shoulder occupying an area of 50 cm².
(c) Mention the type of teaching skill of teacher is being represented here?

Mention the name of the type of forces involved in the situations given below.
(a) A horse pulling a cart.
(b) A sticker attached to steel almirah without glue.
(c) A coin falling to the ground on slipping from hand.
(d) A plastic comb rubbed in dry hair picking up tiny pieces of papers.
(e) A moving boat coming to rest when rowing is stopped.

Amit and Sumit were good friends. They both went to gym center for exercise. As, the coach of gym told them to complete 10 dips each. So, Amit started doing it by stretching the palms on the floor while Sumit opted to do the same job on pair of rods at some height from floor.
(a) Amit got less pain while Sumit got more pain on his palm. Why?
(b) Mention the idea used by Amit here.

Across:
1. This force always acts on all the moving objects.
2. Objects fall towards the earth due to what?
3. Force resulting due to action of muscles.
4. The strength of object is expressed by.
Down:
5. A push or pull.
6. Electrostatic force is an example of this.
7. Force can give this to a stationary object.
8. A push or pull.

Experimentally explain that pressure is exerted by liquids and gases on the walls of the containers.

What are contact and non-contact forces? Explain briefly with suitable examples.