Uniform Circular Motion

If an object completes one full revolution in 4 seconds, what is the frequency of the motion?

• 0.25 Hz

• 4 Hz

• 0.5 Hz

• 2 Hz

What will be the effect on centripetal force if the mass of the object is tripled while maintaining the same speed and radius?

• Doubles

• Triples

• Remains the same

• Increases nine times

In uniform circular motion, how are the directions of velocity and acceleration related?

• Both point towards the center

• Both are tangential to the circle

• Velocity is tangential, and acceleration is radial

• Both are in the direction of motion

Which of the following quantities does not affect the centripetal force needed for circular motion?

• Mass of the object

• Radius of the path

• Speed of the object

• Gravitational constant

If a car turns in a circular path on a flat road, what provides the centripetal force?

• Gravitational force

• Normal force

• Friction between tires and road

• Engine power

What remains constant in uniform circular motion?

• Speed

• Velocity

• Acceleration

• Displacement

Which force is responsible for keeping an object moving in a circular path?

• Gravitational force

• Centripetal force

• Frictional force

• Tangential force

What is the direction of the centripetal force in uniform circular motion?

• Tangential to the circle

• Radially inward

• Radially outward

• Along the velocity vector

Which of the following quantities changes in uniform circular motion?

• Speed

• Radius

• Velocity

• Time period

How is angular velocity related to the radius and speed of the object?

• ω = v · r

• ω = v / r

• ω = r / v

• ω = v² / r