Simple Harmonic Motion Gravitation MCQ (Multiple Choice Questions) PDF Download

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

1. v²⁄r
2. v⁄r
3. v²×r
4. v×r

A force that acts to return the mass to its equilibrium position is called

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

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

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

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