Physics MCQs

852 MCQs  (Page 74 of 86)

Taking off rocket can be explained by __________________?
A. 1st law of motion
B. 2nd law of motion
C. Law of conservation of momentum
D. Law of conservation of energy
Flight of a rocket in the space is an example of______________________?
A. Second law of motion
B. Third law of motion
C. First law of motion
D. Law of gravitation
3rd law of motion explains______________________?
A. Effect of force
B. Existence of a force
C. Existence of two forces
D. Existence of pair of forces in nature
Which of the following pair has same direction always ?
A. Force, displacement
B. Force, velocity
C. Force, acceleration
D. Force, momentum
The collision between two bodies be elastic if bodies are_________________?
A. Solid and soft
B. Soft and elastic
C. Solid and hard
D. Hard and elastic
When body is in motion, ____________ always changes?
A. Its velocity
B. Its acceleration
C. Its position vector
D. Its momentum