Laws of Motion Practice Questions
NEET · Physics · 1259 free MCQs with instant results and detailed explanations.
1259
Total
355
Easy
542
Medium
362
Hard
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Topics in Laws of Motion
Newton's Laws
356
Circular Motion Dynamics
204
Circular Motion
210
Friction
190
Pseudo Forces
299
Sample Questions from Laws of Motion
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
What is the main principle behind Newton's First Law of Motion?
A.
An object at rest remains at rest unless acted upon by an external force.
B.
For every action, there is an equal and opposite reaction.
C.
The force acting on an object is equal to the mass of that object times its acceleration.
D.
Motion is relative and depends on the observer.
Show Answer & Explanation
Correct Answer: A
Newton's First Law states that an object will remain at rest or in uniform motion unless acted upon by an unbalanced external force.
Q2
Easy
If a car accelerates uniformly from rest to a speed of 20 m/s in 10 seconds, what is the average acceleration?
A.
2 m/s²
B.
1 m/s²
C.
4 m/s²
D.
0.5 m/s²
Show Answer & Explanation
Correct Answer: A
Average acceleration = (final velocity - initial velocity) / time = (20 m/s - 0) / 10 s = 2 m/s².
Q3
Easy
Which of the following statements is NOT a consequence of Newton's Third Law?
A.
Action and reaction forces are equal in magnitude.
B.
Action and reaction forces act on the same object.
C.
For every action, there is an equal and opposite reaction.
D.
Forces can cancel each other when acting on different bodies.
Show Answer & Explanation
Correct Answer: B
Newton's Third Law states that action-reaction forces act on different objects, not the same one.
Q4
Medium
An object at rest will stay at rest unless acted upon by which type of force?
A.
Balanced forces
B.
Unbalanced forces
C.
Frictional forces
D.
Gravitational forces
Show Answer & Explanation
Correct Answer: B
According to Newton's first law, an object will remain at rest unless acted upon by an unbalanced force.
Q5
Medium
If a force of 50 N is applied to a 25 kg object, what is the object's acceleration?
A.
2 m/s²
B.
1.5 m/s²
C.
3 m/s²
D.
4 m/s²
Show Answer & Explanation
Correct Answer: A
Acceleration is calculated by a = F/m, thus a = 50 N / 25 kg = 2 m/s².
Q6
Medium
A 10 kg block is sliding on a frictionless surface. What will be its acceleration if a force of 30 N is applied?
A.
3 m/s²
B.
5 m/s²
C.
2 m/s²
D.
1 m/s²
Show Answer & Explanation
Correct Answer: A
Using F = ma, acceleration a = F/m = 30 N / 10 kg = 3 m/s².
Q7
Medium
A person pushes against a wall with a force of 100 N. If the wall doesn’t move, what is the net force on the person?
A.
0 N
B.
100 N
C.
50 N
D.
200 N
Show Answer & Explanation
Correct Answer: A
If the wall does not move, the net force acting on the person is 0 N due to balanced forces.
Q8
Hard
A body of mass 10 kg is moving with a velocity of 5 m/s when it collides elastically with another body at rest. After the collision, the first body moves with a velocity of 3 m/s. What is the velocity of the second body after the collision?
A.
4 m/s
B.
6 m/s
C.
2 m/s
D.
8 m/s
Show Answer & Explanation
Correct Answer: B
In an elastic collision, both momentum and kinetic energy are conserved. Using the conservation of momentum: m1u1 + m2u2 = m1v1 + m2v2. Solving yields v2 = 6 m/s for the second body.
Q9
Hard
A 10 kg block is pulled across a flat surface with a force of 50 N. If the coefficient of kinetic friction is 0.2, what is the acceleration of the block?
A.
2 m/s²
B.
3 m/s²
C.
4 m/s²
D.
5 m/s²
Show Answer & Explanation
Correct Answer: B
The net force is calculated after subtracting the frictional force from the applied force, leading to an acceleration of 3 m/s².
Q10
Hard
If a car is traveling at a constant velocity of 60 km/h and suddenly stops, what is the role of inertia in this scenario?
A.
Causes the car to continue moving.
B.
Makes the car stop immediately.
C.
Increases the car's speed.
D.
Has no effect on the car.
Show Answer & Explanation
Correct Answer: A
Inertia is the property of matter that causes it to resist changes in motion, so the car continues to move forward when the brakes are applied.
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Laws of Motion — NEET Physics Practice Questions Online
This page contains 1259 practice MCQs for the chapter Laws of Motion in NEET Physics. The questions are organized by difficulty — 355 easy, 542 medium, 362 hard — so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 5 topics, giving you comprehensive coverage of the entire chapter.