# MCQ Class 9 Science Chapter 9 Force and Laws of Motion

These Force and Laws of Motion Class 9 MCQ are Compulsory for the Class 9 Board Exam. According to the new guidelines of the CBSE Exam pattern, Objective type Questions or MCQ will be interrogated in the board exam. So, Students have the extraordinary chance to get some extra no. with only a couple of words. Practice this MCQ on Force and Laws of Motion Class 9 that are given below and make your concepts of the chapter strong.

Check the below Force and Laws of Motion Class 9 MCQ Questions with Answers available with PDF free download. MCQ Questions for Class 9 Science with Answers were prepared based on the latest syllabus and examination pattern issued by CBSE, NCERT and KVS. Our teachers have provided below Force and Laws of Motion Class 9 MCQ Questions with answers which will help students to revise and get more marks in exams

## Force and Laws of Motion Class 9 MCQ Questions with Answers

Refer below for Force and Laws of Motion Class 9 MCQ Questions with solutions. Solve MCQ questions and compare them with the answers provided below

Force and Laws of Motion Class 9 MCQ PDF downloads have been gathered for students to rehearse. Students can prepare this Class 9 Force and Laws of Motion MCQ PDF. Each question has four choices with answers. Firstly, Solve all these Questions and check your answer with the right answer. If your answers do not match with the right answer, Don’t worry try again because You need to prepare daily to score higher marks in the Class 9 Physics Exam.

Question. When a toothpaste tube is squeezed, its shape changes. The force responsible for this is an example of :
(a) balanced forces
(b) centripetal forces
(c) unbalanced forces
(d) centrifugal forces

A

Question. The inertia of an object tends to cause an object :
(a) to increase its speed
(b) to decrease its speed
(c) to resist a change in its state of motion
(d) to decelerate due to friction

C

Question. When we talk of a force acting on a body, it usually means :
(a) electrical force
(b) balanced force
(c) unbalanced force
(d) nuclear force

C

Question. A passenger in a moving train tosses a coin which falls behind him. This shows that the motion of train is
(a) accelerated
(b) uniform
(c) retarded
(d) along circular track

A

Question. ‘When a hanging carpet is beaten with a stick, the dust particles start coming out of it’. This phenomenon
can be best explained by making use of :
(a) Newton’s third law of motion
(b) Newton’s law of gravitation
(c) Newton’s first law of motion
(d) Newton’s second law of motion

C

Question. A water tanker filled up to two-thirds of its tank with water is running with a uniform speed. When the brakes are suddenly applied, the water in its tank would :
(a) move backward
(b) move forward
(c) rise upwards
(d) remain unaffected

B

Question. If we release a magnet held in our hand, it falls to the ground. The force which makes the magnet fall down is an example of :
(a) balanced force
(b) unbalanced force
(c) magnetic force
(d) muscular force

B

Question. The inertia of a moving object depends on :
(a) momentum of the object
(b) speed of the object
(c) mass of the object
(d) shape of the object

C

Question. When a rubber balloon held between the hands is pressed, its shape changes. This happens because :
(a) balanced forces act on the balloon
(b) unbalanced forces act on the balloon
(c) frictional forces act on the balloon
(d) gravitational forces act on the balloon

A

Question. Which of the following effect cannot be produced by an unbalanced force acting on a body ?
(a) change in speed of the body
(b) change in shape of the body
(c) change in direction of motion of the body
(d) change in state of rest of the body

B

Question. State whether force is a scalar or a vector quantity.

Vector

Question. With which physical quantity should the speed of a running bull be multiplied so as to obtain its momentum ?

Mass (of bull)

Question. Name the physical quantity which is considered to be a measure of the quantity of motion of a body.

Momentum

Question. State whether momentum is scalar or vector.

Vector

Question. What name is given to the product of mass and velocity of a body ?

Momentum

Question. What is the total momentum of the bullet and the gun before firing ?

Zero

Question. Name the physical quantity whose unit is kg.m/s.

Momentum

Question. Name the unbalanced force which slows down a moving bicycle when we stop pedalling it.

Force of friction

Question. What is the usual name of the forces which cannot produce motion in a body but only change its shape ?

Balanced forces

Question. When a ball is dropped from a height, its speed increases gradually. Name the force which causes this change in speed.

Force of gravity

Question. State whether the following statement is true or false :
Unbalanced forces acting on a body change its shape.

false

Question. The mass of object A is 6 kg whereas that of another object B is 34 kg. Which of the two objects, A or B, has more inertia ?

B

Question. Name the property of bodies (or objects) to resist a change in their state of rest or of motion.

Inertia

Question. What is the other name of Newton’s first law of motion ?

Galileo’s law of inertia

Fill in the following blanks with suitable words :

Question If there were no unbalanced force of …………… and no ………….. resistance, a moving bicycle would go on moving for ever.

friction ; air

Question ……………….. is a measure of the inertia of a body.

Mass

Question When a stationary car starts suddenly, the passengers are jerked …………..

backward

Question When a running car stops suddenly, the passengers are jerked …………

forward

Question Newton’s first law of motion is also called Galileo’s law of …………………