Centripetal and centrifugal forces in mcq

A few MCQs on Centrifugal and Centripetal force are:

1. Which of the following forces is responsible for keeping a planet in orbit around the Sun?

a) Gravitational force

b) Electrostatic force

c) Magnetic force

d) Nuclear force

Answer: a) Gravitational force

2. A car rounds a curve at a constant speed. Which of the following is true about the centripetal force acting on the car?

a) It is directed towards the center of the curve.

b) It is directed away from the center of the curve.

c) It is directed tangentially to the curve.

d) It is zero.

Answer: a) It is directed towards the center of the curve.

3. A ball is whirled in a horizontal circle at the end of a string. If the string breaks, what will be the path of the ball?

a) It will continue to move in a circle.

b) It will move in a straight line tangent to the circle.

c) It will fall straight down.

d) It will spiral outwards.

Answer: b) It will move in a straight line tangent to the circle.

4. Which of the following is an example of a centrifugal force?

a) The force that keeps the Moon in orbit around the Earth.

b) The force that causes water to fly out of a spinning bucket.

c) The force that causes a car to skid on a wet road.

d) The force that causes a falling object to accelerate.

Answer: b) The force that causes water to fly out of a spinning bucket.

5. A satellite orbits the Earth at a constant speed. What is the direction of the net force acting on the satellite?

a) Towards the center of the Earth.

b) Away from the center of the Earth.

c) Tangential to the orbit.

d) There is no net force acting on the satellite.

Answer: a) Towards the center of the Earth.