Question

Fill in the blanks:
(a) Friction is caused by the
.. of the surfaces in contact
(b) At least
..... objects must interact for a force to come into to play
(c)The strength of a force is expressed by its ..................
(d) With the change in direction or magnitude of the applied force, its
also changes.
e) If two forces act in the opposite direction on an object, the net force acting
between the two forces
on it is the
(f)In liquids, pressure acts in
directions and pressure
as the depth increases.
(g)The
force can act from a distance.​

Answer 1

Fill in the blanks :

• (a) Friction is caused by the ( interlocking of irregularities ) of the surfaces in contact.

• (b) At least ( two ) objects must interact for a force to come into to play.

• (c) The strength of a force is expressed by its ( magnitude ) .

• (d) ( Yes, it's true statement ) with the change in direction or magnitude of the applied force, its also changes.

• (e) If two forces act on an object in the opposite direction then the net force is equal to their addition of forces.

• (f) Pressure increases as the depth increases. The pressure in a liquid is due to the weight of the column of water above. Since the particles in a liquid are tightly packed, this pressure acts in all directions.

• (g) According to Newton's gravitational law, the force on mass m due to gravity is F = GM m / r². Thus, the force of gravity depends on the distance r. Hence, the force of gravity can act for a finite distance. Thus, the given statementis false.

Answer 2

Answer:

(a) Friction is caused by the

.. of the surfaces in contact

(b) At least

..... objects must interact for a force to come into to play

(c)The strength of a force is expressed by its ..................

(d) With the change in direction or magnitude of the applied force, its

also changes.

e) If two forces act in the opposite direction on an object, the net force acting

between the two forces

on it is the

(f)In liquids, pressure acts in

directions and pressure

as the depth increases.

(g)The

force can act from a distance.