CBSE Class 9  >  Class 9 Test  >  : Additional Practice  >  Test: Force and Laws of Motion- Case Based Type Questions - Class 9 MCQ

Force and Laws of Motion- Case Based Type Questions - Free with solutions


MCQ Practice Test & Solutions: Test: Force and Laws of Motion- Case Based Type Questions (15 Questions)

You can prepare effectively for Class 9 Class 9: Additional Practice with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Force and Laws of Motion- Case Based Type Questions". These 15 questions have been designed by the experts with the latest curriculum of Class 9 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 30 minutes
  • - Number of Questions: 15

Sign up on EduRev for free to attempt this test and track your preparation progress.

Test: Force and Laws of Motion- Case Based Type Questions - Question 1

Direction: Read the following paragraph and choose the correct options to answer any four questions given below :

A large bus and a van, both moving with a velocity of magnitude v, have a head-on-collision and both the vehicles stop after the collision. The time of the collision is 1 sec.

Q. Which vehicle according to you will suffer the less damage?

Detailed Solution: Question 1

(a) Since the action and reaction are equal and opposite during a collision, both the vehicles experience an equal force.

(b) We are given,

Initial velocity of both the bus and the van = v

Final velocity of both the bus and the van = 0

If m₁ and m₂ are the masses of the large bus and the van respectively, where m₁ is much greater than m₂

Change in momentum of the bus = m₁ x (0 — v) = —m₁v

Change in momentum of the van = m₂ x (0 — v) = —m₂v

Since m₁ < m₂,="" the="" van="" will="" experience="" smaller="" momentum="">

(c) The force acting on a body is equal to the product of its mass and the acceleration, i.e.,

F= mass x acceleration = m x a

a = F ÷ m

a α 1 ÷ m

Acceleration experienced by the bus α 1 ÷ m₁

Acceleration experienced by the van , α 1 ÷ m₂

Since m₂ < m₁,="" therefore="" the="" van="" experiences="" greater="">

(d) Due to the transfer of small momentum from the van to the bus, the bus suffers less damage than the van.

Test: Force and Laws of Motion- Case Based Type Questions - Question 2

Direction: Read the following paragraph and choose the correct options to answer any four questions given below :

A large bus and a van, both moving with a velocity of magnitude v, have a head-on-collision and both the vehicles stop after the collision. The time of the collision is 1 sec.

Q. The vehicle, which experiences the smaller momentum change is ...................

Detailed Solution: Question 2

The vehicle, which experiences the smaller momentum change is Bus. The mass of Bus is heavier than the Van.

Test: Force and Laws of Motion- Case Based Type Questions - Question 3

Direction: Read the following paragraph and choose the correct options to answer any four questions given below :

A large bus and a van, both moving with a velocity of magnitude v, have a head-on-collision and both the vehicles stop after the collision. The time of the collision is 1 sec.

Q. The vehicle, which experiences smaller force of impact is ....................

Detailed Solution: Question 3

The vehicle, which experiences smaller force of impact is Bus.

Test: Force and Laws of Motion- Case Based Type Questions - Question 4

Direction: Read the following paragraph and choose the correct options to answer any four questions given below :

A large bus and a van, both moving with a velocity of magnitude v, have a head-on-collision and both the vehicles stop after the collision. The time of the collision is 1 sec.

Q. The vehicle, which experiences the greater acceleration is .....................

Detailed Solution: Question 4

The vehicle, which experiences the greater acceleration is van.

Test: Force and Laws of Motion- Case Based Type Questions - Question 5

Direction: Read the following paragraph and choose the correct options to answer any four questions given below :

A large bus and a van, both moving with a velocity of magnitude v, have a head-on-collision and both the vehicles stop after the collision. The time of the collision is 1 sec.

Q. Under the same conditions, if there was a heavy truck heavier than the bus, in place of van, which one will be more affected?

Detailed Solution: Question 5

Under the same conditions, if there was a heavy truck heavier than the bus, in place of van, bus will be more affected

Test: Force and Laws of Motion- Case Based Type Questions - Question 6

Direction: Study the following diagram and choose the correct options to answer any four questions given below:

In the figure below the card is flicked with a push. It was observed that the card moves ahead while coin falls in glass.

Q. Name the law which provides the definition of force.

Detailed Solution: Question 6

Correct option is D.

Test: Force and Laws of Motion- Case Based Type Questions - Question 7

Direction: Study the following diagram and choose the correct options to answer any four questions given below:

In the figure below the card is flicked with a push. It was observed that the card moves ahead while coin falls in glass.

Q. Name the law involved in this case.

Detailed Solution: Question 7

Law of inertia is nothing but the first law of newton's and it gives a qualitative definition of force. Because force must push, pull and make objects move and bring them into motion also.

Test: Force and Laws of Motion- Case Based Type Questions - Question 8

Direction: Study the following diagram and choose the correct options to answer any four questions given below:

In the figure below the card is flicked with a push. It was observed that the card moves ahead while coin falls in glass.

Q. Give reason for the above observation.

Detailed Solution: Question 8

The coin possesses inertia of rest, it resists the change and hence falls in the glass. Law of inertia is nothing but the first law of newton's and it gives a qualitative definition of force. Because force must push, pull and make objects move and bring them into motion also

Test: Force and Laws of Motion- Case Based Type Questions - Question 9

Direction: Study the following diagram and choose the correct options to answer any four questions given below:

In the figure below the card is flicked with a push. It was observed that the card moves ahead while coin falls in glass.

Q. If the above coin is replaced by a heavy five rupee coin, what will be your observation. Give reason.

Detailed Solution: Question 9

If the above coin is replaced by a heavy five rupee coin then, heavy coin will possess more inertia so it will fall in tumbler.

Test: Force and Laws of Motion- Case Based Type Questions - Question 10

Direction: Study the following diagram and choose the correct options to answer any four questions given below:

In the figure below the card is flicked with a push. It was observed that the card moves ahead while coin falls in glass.

Q. State Newton’s first law of motion.

Detailed Solution: Question 10

A body at rest remains at rest or, if in motion, remains in motion at constant velocity unless it is acted upon by an external unbalanced force.

Test: Force and Laws of Motion- Case Based Type Questions - Question 11

Direction: Observe the diagram and answer any four questions below:

Two forces F1 = 20 N and F2 = 30 N are acting on an object as shown in figure :

Q. Identify the name of this extra force and its direction.

Detailed Solution: Question 11

(i) net force acting on them will be

10 N

as force is a vector quantity.

so while adding them

we generally subtract them…

(ii) the greater force is 30 N ,so the direction of motion will be that of the greater force.

(iii) an extra force is acting in the direction of F1 force which is balancing the two forces.

the magnitude of that force is 10 N.

Test: Force and Laws of Motion- Case Based Type Questions - Question 12

Direction: Observe the diagram and answer any four questions below:

Two forces F1 = 20 N and F2 = 30 N are acting on an object as shown in figure :

Q. State the direction of the net force acting on the object ?

Detailed Solution: Question 12

See Newton's first law of motion. When there is a net force on an object, it causes the object to accelerate in the direction of the net force; this is not the same as the direction of the motion unless the object is going in a straight line

Test: Force and Laws of Motion- Case Based Type Questions - Question 13

Direction: Observe the diagram and answer any four questions below:

Two forces F1 = 20 N and F2 = 30 N are acting on an object as shown in figure :

Q. Find the net force acting on the object.

Detailed Solution: Question 13

Net force acting on the object = F2 – F1 = 30 N – 20 N = 10 N

Test: Force and Laws of Motion- Case Based Type Questions - Question 14

Direction: Observe the diagram and answer any four questions below:

Two forces F1 = 20 N and F2 = 30 N are acting on an object as shown in figure :

Q. If the body still does not move under the application of these forces, what can be the possible reason for this.

Detailed Solution: Question 14

Since the object is not moving, all forces are balanced.

The force is the force of friction. It acts between object (lower surface) and floor (upper surface). Its direction is that of F1.

Test: Force and Laws of Motion- Case Based Type Questions - Question 15

Direction: Observe the diagram and answer any four questions below:

Two forces F1 = 20 N and F2 = 30 N are acting on an object as shown in figure :

Q. What is the unit of force?

Detailed Solution: Question 15

The SI unit of force is the newton, symbol N.

4 docs|108 tests
Information about Test: Force and Laws of Motion- Case Based Type Questions Page
In this test you can find the Exam questions for Test: Force and Laws of Motion- Case Based Type Questions solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Force and Laws of Motion- Case Based Type Questions, EduRev gives you an ample number of Online tests for practice
Download as PDF