Laws of Motion MCQs for NEET

Even though the NEET exam is for students aspiring to get admitted to medical colleges, Biology is not the single most crucial subject to crack it. Physics and Chemistry play an equally important role for the exam, and students must be well versed in all three of these to crack NEET.

Introduction to Newton’s Laws of Motion

The foundations of classical mechanics are based on the Laws of Motion formulated by Isaac Newton, an English Physicist and Mathematician. These laws explore the quantitative changes that a force can produce on the motion of a body based on its mass.

The First Law of Motion states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

The Second Law of Motion states that the force acting on an object is equal to the mass of that object times its acceleration.

The Third Law of Motion states that for every action, there is an equal and opposite reaction.

Ways to solve NEET Laws of Motion MCQs

Vedantu has provided a guide on its website and app for free to help students with a set of Multiple Choice Questions (MCQs) for the National Eligibility Entrance Test (NEET). These MCQs are divided between each of the Three Laws of Motion. The students will need to learn the following formulae and concepts to solve many of them:

• Law of Inertia

The first Law of Motion is also known as the Law of Inertia. Inertia is the resistance of a Physical object to a change in its state of motion. If an object is at rest, it will remain at rest unless acted upon by an external force. Similarly, if an object is already moving at a constant velocity, it will continue to do so unless acted upon by an external force.

For example, a rolling ball keeps rolling unless friction acting on it slows it to a halt.

• F=ma 

where ‘F’ stands for Force (N), ‘m’ stands for mass (kg) and ‘a’ stands for acceleration (m/s2). This equation is derived from the Second Law of Motion. 

It demonstrates that the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to the mass of the object. Hence, the net force acting on an object is a product of the mass of the object and its acceleration.

• F=ma  ––– –– — ––> F= m[(v1-v0)/t1-t0)] 

where v1 is the final velocity and v0 is the initial velocity of the object.

This equation is used to find out the net force exerted on a known mass multiplied by the change in velocity of the object over time.

• F1= -F2  ––– –– — ––>  m1a1= -m2a2 

where Object 1 exerts a force (F1) on Object 2, Object 2 exerts an equal and opposite force (-F2) on Object 1. 

This can be used to derive how the objects move if they collide based on their individual mass and acceleration. This equation is derived from the Third Law of Motion.

• Acceleration of Free Fall

All bodies in free fall (that is, no force acting on them other than the gravitational pull) near the earth's surface have the same downward acceleration of 9.8m/s2.

Acceleration is the change in velocity. This means that the speed of a freely falling object increases as it falls. This change in speed is due to gravity. Hence, this acceleration is denoted by 'g'.

g=9.8m/s2

• Real-Life Applications of Laws of Motion

Laws of Motion are at play right in front of our eyes at all times in the tiniest and biggest manner around us. For example:

1. Ronaldo takes a penalty and his kick forces the ball lying at rest to the top left corner of the net

2. Students fall forward when a school bus suddenly applies brakes

3. Satellites revolving around the earth

4. Meteor exploding on a planet.

One of the most critical areas in Physics, where many students lack fluent knowledge, is NEET Physics Laws of Motion. The following section is a concise guide to Laws of Motion MCQs for NEET, to be of paramount help during your last minute revision. 

Laws of Motion MCQs for NEET - First Law of Motion

1. Consider a particle moving on a straight line with constant velocity. Which of these will not be affected if a force is applied to it?

1. For the particle to move with constant velocity. (Answer)

2. For it to increase its speed.

3. For it to change its momentum. 

4. For it to change its direction.

2. A bus is moving in a straight line, and suddenly, it takes a right turn. The passengers are seen to be thrown towards the left. Why is that?

1. Acceleration of motion

2. Speed of motion

3. Inertia of motion (Answer)

4. None of the above

3. A mass of 1kg is hanging from a ceiling suspended by a string. Another string is tied to the lower end of the mass. What will happen if I suddenly jerk the string below?

1. The mass will rotate. 

2. The lower part of the string will break. (Answer)

3. The upper part of the string will break. 

4. The whole system will fall down.

4. When you get down from a running bus, you seem to fall forward. Why is that?

1. Due to inertia of rest, the road remains static, and the bus continues to move.

2. Due to inertia of motion, your feet come to a rest, but your upper body part continues to stay in motion. (Answer)

3. It is just your habit. 

4. All of the above

5. Which of the following Physical concepts does Newton’s First Law of Motion explain?

1. Inertia (Answer)

2. Energy

3. Force

4. Acceleration

Laws of Motion MCQs for NEET - Second Law of Motion

1. A bullet has a mass of 5 g and is travelling at a speed of 100 m/s. It hits a metal block and penetrates 6 cm inside it. What is the average resisting force the metal block exerted on the bullet?

1. 830 N

2. 417 N (Answer)

3. 1000 N

4. 0 N 

2. Which of the following Physical concepts does Newton’s Second Law of Motion explain?

1. Force (Answer)

2. Angular Momentum 

3. Acceleration

4. Velocity

3. The mass of a body is 2 kg, and it is moving on a horizontal surface with a velocity of 4 m/s, but comes to rest after 2 seconds. What will be the force to be applied to it if one wants the body to move with the same initial velocity?

1. 0 N

2. 2 N

3. 4 N (Answer)

4. 8 N

4. A lift descends vertically with a mass of 2 kg inside it hung from a spring balance. Acceleration due to gravity is g. What will be the reading on the balance?

1. 2g

2. 4g

3. 0 (Answer)

4. g

5. A brick takes time to reach the floor of a stationary lift when dropped from a height. It takes time to reach the floor when the lift is moving up with constant acceleration, dropped from the same height. Then

1. t > t’ (Answer)

2. t < t’

3. t << t’

4. No relation between t and t’

Laws of Motion MCQs for NEET - Third Law of Motion

1. Which of these Physical properties will be conserved due to Newton's Third Law of Motion?

1. Momentum (Answer)

2. Angular Momentum

3. Acceleration

4. Force exerted

2. Consider a piece of mass freely floating on water inside a beaker. Now, if the beaker with the mass freely falls under gravitational attraction, what will be the upthrust force exerted by water on the piece of mass?

1. Equal to displaced air 

2. Equal to displaced water

3. Zero (Answer)

4. Equal to g

3. A monkey is stationed on a spring balance, which reads 60 kg wt. How will the reading of the balance be affected if the monkey jumps off it?

1. Decreases

2. Increases

3. No change

4. First increases then becomes zero (Answer)

4. A mass M kg is suspended from a spring balance, which in turn is hanging from the hook of another spring balance. What will be the readings on both of these balances?

1. Both will read M kg. (Answer)

2. Both will read M/2 kg. 

3. The lower one will read M kg, and the upper one zero. 

4. The sum of both their readings will be M kg.

5. A plane is inclined at an angle of 30 degrees from the horizontal surface. A mass of 5kg is kept on the inclined surface and suspended from a spring balance. What will be the balance reading if g = 10 m/s2?

1. 25 N (Answer)

2. 50 N

3. 100 N

4. Inconclusive reading

Now that all of the Laws of Motion NEET questions are covered, keep in mind that Newton's Laws of Motion is an important area in all entrance exams. So, the same questions can be referred to for Laws of Motion MCQs for competitive exams or even Laws of Motion Class 11 MCQs. We also present to you a table which elaborates the other topics which are extremely crucial for NEET 2025. 

Crack NEET 2025 with Ease by Preparing MCQs

We hope our concise guide for Laws of Motion MCQs for NEET will be the perfect aid for medical aspirants. Although curated specially for NEET, these MCQs on motion will also be able to help them for other competitive exams as well.

With NEET 2025 just around the corner, we assume you have already started preparing for it. Prepare a balanced routine, keep yourself energised and ready for challenges and take utmost care of your health during these tough times.