5. Circular Motion and Gravitation
Centripetal Force — Quiz
Test your understanding of centripetal force with 5 practice questions.
Practice Questions
Question 1
Which quantity is responsible for keeping an object moving in a circular path?
Question 2
An object of mass 5 kg is moving in a circle of radius 3 m with a constant speed of 6 m/s. What is the centripetal force acting on the object?
Question 3
A ball is whirled in a horizontal circle at constant speed. If the speed of the ball is doubled and the radius remains the same, how does the centripetal force change?
Question 4
A 0.5 kg object is attached to a string and moves in a vertical circle of radius 2 m. At the top of the circle, the speed of the object is 4 m/s. What is the centripetal force required at the top?
Question 5
What happens to the centripetal force if the radius of the circular path is halved, while the mass and speed remain constant?