Understanding Centripetal and Centrifugal Forces

Why is centripetal force considered peculiar in its relation to velocity?

• It is parallel to velocity.

• It is the same as velocity.

• It is perpendicular to velocity.

• It is opposite to velocity.

What happens to an object when a force is applied perpendicular to its motion?

• It changes direction.

• It stops moving.

• It slows down.

• It speeds up.

What is the relationship between centripetal force and the radius of a circle?

• Centripetal force does not affect the radius.

• More centripetal force results in a smaller radius.

• More centripetal force results in a larger radius.

• Centripetal force and radius are unrelated.

Which of the following is NOT a source of centripetal force?

• Friction

• Tension

• Centrifugal force

• Gravitation

What is centrifugal force considered in physics?

• A real force

• A pseudo force

• A gravitational force

• A tension force

When is centrifugal force needed in physics?

• In tension-based systems

• In gravitational fields

• In non-inertial frames of reference

• In inertial frames of reference

What provides the centripetal force for a rotating ball on a string?

• The centrifugal force

• The weight of the ball

• The tension in the string

• The air resistance

Why does the water surface curve more when rotating faster?

• Due to decreased centripetal force

• Due to increased pressure difference

• Due to increased gravitational force

• Due to decreased tension

What is the role of the vertical component of tension in a rotating ball?

• To increase the speed of rotation

• To balance the weight of the ball

• To decrease the radius of rotation

• To provide centrifugal force

Why should centrifugal force be avoided in scientific analyses?

• It is a real force.

• It simplifies calculations.

• It is always required.

• It is only used in special cases.