## Physics MCQ on Third Law Motion for NEET, JEE, Medical and Engineering Exam 2021

MCQ on Third Law Motion: Previous trends reveal that NEET/JEE aspirants find Physics as the most challenging section amongst the other sections. But most of them fail to decipher the reason behind this. This particularly can be as the candidates taking up this examination are predominantly medical aspirants with their subject of interest being Biology. Also, sections like Physics are more on theories, laws, numerical as opposed to Biology which is more of fact-based, life sciences and comprising of substantial explanations.

In this post we are providing you MCQ on Third Law Motion, which will be beneficial for you in upcoming NEET, AIIMS, JEE, WBJEE, Medical and Engineering Exams.

## MCQ on Third Law Motion

Q1. A body floats in a beaker that contains liquid. If the whole system as shown in the figure falls freely under gravity, then the upthrust on the body due to the liquid is _______.
a) Equal to the weight of the displaced liquid
b) Equal to the weight of the body in the air
c) Zero
d) None of the above

c) Zero

Q2. The horse pulling the wagon is able to move forward because of the force exerted by the _______.
a) horse on the ground
b) ground on the horse
c) wagon on the horse
d) horse on the wagon

b) ground on the horse

Q3. The gun recoils after firing a bullet due to _______.
a) Newton’s First Law of Motion
b) Newton’s Second Law of Motion
c) Newton’s Third Law of Motion
d) Newton’s Law of Gravitation

c) Newton’s Third Law of Motion

Q4. Walking is possible on the account of _______.
a) Newton’s First Law of Motion
b) Newton’s Second Law of Motion
c) Newton’s Third Law of Motion
d) Newton’s Law of Gravitation

c) Newton’s Third Law of Motion

Q5. Why won’t the man attempting to pull himself by tugging on his hair not succeed?
a) The exerted force is small
b) The force applied is internal to the system
c) The frictional force in play while gripping is small
d) Newton’s law of inertia is not applicable to living beings

b) The force applied is internal to the system.

Q6.Recoiling of a cannon after firing a shot is an example of _______.
a) Newton’s First Law of Motion
b) Newton’s Second Law of Motion
c) Newton’s Third Law of Motion
d) Newton’s Law of Gravitation

c) Newton’s Third Law of Motion

Q7. A man is at rest on perfectly smooth ice in the middle of a pond. Using the principle of which law will get him to the shore?
a) Newton’s First Law
b) Newton’s Second Law
c) Newton’s Third Law
d) All the above three laws

c) Newton’s Third Law

Q8. In the above question, how high does the lift take the passenger?
a) 36 meters
b) 44 meters
c) 3.6 meters
d) 4.4 meters

a) 36 meters

Q9. When we jump out of the boat standing in still water, the boat moves _______.
a) Forward
b) Backwards
c) Sideways
d) It doesn’t move

b) Backwards