Fill in the blanks

Friction is a __________ force (contact / non-contact)

Choose the correct answer.

a) The SI unit of pressure is N/m².This unit is otherwise called _____________ (pascal, newton, joule)

b) Atmospheric pressure at sea level is approximately equal to ________ (10⁵ N/m², 10⁷ N/m², 10³ N/m²)

Match the following

Correct the given statement.

The gravitational force of moon is equal to the gravitational force of earth.

List out the following actions on the basis of contact force and non contact force

a) lifting a chair

b) the falling of a coconut from the tree

c) friction between the road and the tyre of a car

d) a comb attracts bits of paper

e) attraction between two magnets