MCQs on Physics - Circular Motion

# When does an artificial earth satellite that is in an elliptical orbit experience its greatest centripetal acceleration?
A - When it first enters orbit
B - When it is nearest the earth
C - When it is farthest from the earth
D - Its centripetal acceleration is always the same

# The period of a circular motion is given by ?
A - T = ω/π
B - T = 2πω
C - T = πω
D - T = 2π/ω

 # If no force is required to hold an object in a particular frame of reference. It is called?
A - High force system
B - Gravity Free system
C - Gravity pull system
D - Natural system

 # If a car moves with a uniform speed of 2 ms^-2 in a circle of radius 0.4. Its angular speed is ?
A - 1.6 rad  s^-1
B - 2.8 rad  s^-1
C - 4 rad. S^-1
D - 5 rad  s^-1