Forces and Laws...

Identify the incorrect statement.

How much force acts on body whose momentum is constant (i.e. = constant)?

The principle of conservation of linear momentum states that linear momentum of a system

The action and reaction forces referred in the third law

Statement A: Gravitational force is the weakest force in nature.
Statement B: Electrostatic force is an example of non – contact forces.
Which of the above two statements is true?

Ayush hits a cricket ball. It then rolls of a level ground after covering a short distance, the ball comes to rest. The ball slows and then stops because

Match the following with correct response.
(1) Action and reaction
(2) Magnitude of force
(3) Momentum
(4) Resultant of balanced force

(A) No acceleration
(B) Newton’s second law
(C) Act on different objects
(D) Vector quantity

Match the following with correct response.
(1) Cart pulled by a horse
(2) Backward jerk
(3) Sole of shoe worn out
(4) Recoiling of gun

(A) Friction
(B) Newton’s III law of motion
(C) Law of conservation of momentum
(D) Law of inertia

Match the following with correct response.
(1) Cause of acceleration
(2) Quantitative measure of inertia
(3) powder applied on carom board
(4) Tyres of vehicles made Rough

(A) Mass
(B) Increases friction
(C) Decreases friction
(D) Force

When a force is exerted on an object, it can change its-
A State
B Position
C Shape
D Direction