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# Physics Classroom Multiple Choice Questions (MCQ) PDF

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The MCQ To every action, there is always an equal but opposite reaction, this statement is known as: newton's 2nd law of motion, newton's 1st law of motion, newton's 3rd law of motion and law of momentum with "Physics Classroom" App Download (Free) for online teaching certification programs. Study dynamics quiz questions, download Amazon eBook (Free Sample) for online classes.

## Physics Classroom MCQ Quiz : Physics MCQs

MCQ 1: To every action, there is always an equal but opposite reaction, this statement is known as

A) newton's 2nd law of motion
B) newton's 1st law of motion
C) newton's 3rd law of motion
D) law of momentum

MCQ 2: Two masses 7.5 kg and 6.7 kg are attached to the ends of an inextensible string passes over a frictionless pulley. Its tension when both masses are moving vertically will be equal to

A) 50 N
B) 70.7 N
C) 65.6 N
D) 45 N

MCQ 3: When donkey pulls a cart, the action is on the

A) cart
B) donkey
C) earth
D) earth and cart

MCQ 4: Two masses 4.5 kg and 3.8 kg are attached to the ends of an inextensible string passes over a frictionless pulley. Its acceleration when both masses are moving vertically will be equal to

A) 0.8 ms−2
B) 0.5 ms−2
C) 2 ms−2
D) 1.5 ms−2

MCQ 5: When a force acts on a body, it produces an acceleration in the body and will be equal to the rate of change of

A) velocity of the body
B) displacement of the body
C) inertia of the body
D) momentum of the body

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