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Laws of Motion - SS1 Physics Past Questions and Answers - page 1

1

According to Newton's first law of motion, an object will remain at rest or in uniform motion in a straight line unless acted upon by a ___________.

A

gravitational force

B

net force

C

frictional force

D

centripetal force

2

Newton's second law of motion states that the acceleration of an object is directly proportional to the ___________ applied to it and inversely proportional to its ___________.

A

Velocity, acceleration 

B

force, mass

C

mass, velocity

D

acceleration, force

3

According to Newton's third law of motion, for every action, there is an equal and opposite ___________.

A

Force

B

Reaction

 

C

Acceleration

 

D

Velocity

4

Which of the following examples best illustrates Newton's first law of motion?

A

A car comes to a stop when the brakes are applied

 

B

A ball rolls down a hill due to the force of gravity

 

C

A person pushes a shopping cart, causing it to move forward

 

 

D

A book remains on a table unless someone pushes it.

5

An astronaut floating in space experiences no gravitational force because ___________.

A

there is no air resistance in space

 

B

the astronaut is weightless

 

C

the astronaut is not in contact with any surface

 

D

there is no atmosphere in space

6

Explain Newton's first law of motion and provide an example to illustrate its application.

7

Explain Newton's second law of motion and provide an example to illustrate its application.

8

Explain Newton's third law of motion and provide an example to illustrate its application.

9

Which of the following best defines inertia?

A

The tendency of an object to resist changes in its state of motion

 

B

The force required to accelerate an object

C

The measure of the total quantity of matter in an object

D

The resistance of an object to gravitational forces.

10

Which of the following factors affects the inertia of an object?

A

Acceleration applied to the object.

B

The size of the object.

C

The shape of the object.

D

The mass of the object.

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