Circular Motion
Physics ⇒ Mechanics
Circular Motion starts at 10 and continues till grade 12.
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See sample questions for grade 11
A satellite orbits Earth in a circular path. What provides the centripetal force in this case?
Describe the difference between centripetal and centrifugal forces.
Explain why passengers feel pushed outward when a car takes a sharp turn.
If the angular velocity of a particle is doubled, what happens to its centripetal acceleration (assuming radius is constant)?
A 0.5 kg mass is attached to a string and moves in a circle of radius 0.8 m at 3 m/s. Calculate the tension in the string.
A 1.5 kg object moves in a circle of radius 2 m at a constant angular velocity of 5 rad/s. What is the centripetal force acting on it?
A 2 kg object moves in a circle of radius 0.5 m with a speed of 6 m/s. What is its centripetal acceleration?
A ball completes 10 revolutions in 5 seconds. What is its frequency of revolution?
The direction of centripetal acceleration is always:
(1) Tangent to the circle
(2) Away from the center
(3) Towards the center
(4) Perpendicular to the velocity
Which of the following best describes the direction of velocity in uniform circular motion?
(1) Radially inward
(2) Radially outward
(3) Tangent to the circle
(4) Perpendicular to the plane of the circle
Which of the following is NOT a necessary condition for uniform circular motion?
(1) Constant speed
(2) Constant direction of velocity
(3) Constant radius
(4) Constant magnitude of centripetal force
Which of the following is true for an object in uniform circular motion?
(1) The net force is zero
(2) The acceleration is zero
(3) The velocity is constant in magnitude
(4) The direction of velocity is constant
The acceleration directed towards the center of a circle in circular motion is called ______ acceleration.
The force that acts perpendicular to the velocity of an object in circular motion is called ______ force.
The frequency of revolution is the reciprocal of the ______.
The linear velocity v of a particle in circular motion is related to its angular velocity ω and radius r by the equation: v = ______.
True or False: In non-uniform circular motion, the speed of the object changes.
True or False: In uniform circular motion, the magnitude of velocity remains constant but its direction changes continuously.
True or False: The magnitude of centripetal force depends on the mass, speed, and radius of the circle.
True or False: The net force acting on an object in uniform circular motion is zero.
