Question

Question 1 1x5=5
(a) The gravitational force is always ______ in nature.
(b) When a book is placed on a table, the action force is the __________.
(c) ______ is a measure of inertia.
(d) The force of attraction between the two particles is due to their __________.
(e) When a body rolls on the surface of another body, the force that comes into play is ___________.
Question 2 : Give the name:
(a) The force between the charged bodies.
(b) A property of the body by which it resists the change of state.
(c) The product of mass and velocity.
(d) The force of attraction of the earth on a body.
(e) The rate at which the velocity of a freely falling body increases.
Question 3 Answer the following: (5) Answer the following
(a) State Newton’s First law of motion.
(b) State Newton’s Second law of motion and derive the relation:
Force = mass x acceleration.
Question 4
(a) Give the relation between mass and weight. (give only expression).
(b) What is “force due to gravity”?
(c) Define gravitational constant?
(d) State Newton’s Third law of motion. (e) Name and define one contact force.

Answer 1

Answer:

1a) attractive

b) = zero

c) mass

d) -------

e) friction

2a) electrostatic force of attraction

b) inertia

c) momentum

d) gravitational force

e) gravity that is g =10m/s^2

3a) I am unable to give definations

Hope the above answers help u except the 1c) question