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Study bachelors and masters degree courses, online physics degree programs MCQs: an object moving in a circle of radius ‘r’ with a constant speed ‘v’ has a constant acceleration towards center equal to with options v²⁄r, v⁄r, v²×r and v×r for online fresh graduate jobs, internship important interview questions and answers with topics and subtopics. Free skills assessment test is for online learn simple harmonic motion gravitation quiz questions with MCQs, exam preparation questions and answers.

MCQ: An object moving in a circle of radius ‘r’ with a constant speed ‘v’ has a constant acceleration towards center equal to

1. v²⁄r
2. v⁄r
3. v²×r
4. v×r

A

MCQ: A force that acts to return mass to it's equilibrium position is called

1. frictional force
2. restoring force
3. normal force
4. contact force

B

MCQ: Velocity of escape is equal to

1. r × √(2g); where r: radius of Earth or any other planet for that matter, g: gravitational field strength
2. g × √(2r); where r: radius of Earth or any other planet for that matter, g: gravitational field strength
3. √(2g) ⁄ r; where r: radius of Earth or any other planet for that matter, g: gravitational field strength
4. √(2gr); where r: radius of Earth or any other planet for that matter, g: gravitational field strength

D

MCQ: Speed ‘v’ with which wave travels through a medium is given by

1. modulus of elasticity/density of the medium
2. modulus of elasticity/√(density of the medium)
3. √(modulus of elasticity/density of the medium)
4. v=d/t

C

MCQ: Due to energy dissipation by viscous forces in air, if simple harmonic variations of a pendulum die away after some time, then oscillation is said to be:

1. undamped
2. free
3. damped
4. dependent

C