Circular Motion and Centripetal Force Quiz

What are the two types of velocities discussed in circular motion?

• Linear and radial velocity

• Linear and angular velocity

• Tangential and radial velocity

• Radial and angular velocity

What does centripetal acceleration depend on?

• Time and radius

• Linear velocity and radius

• Mass and radius

• Angular velocity and mass

In which direction does centripetal acceleration always point?

• Perpendicular to the motion

• Away from the center

• In the direction of motion

• Towards the center

How is linear velocity related to angular velocity in circular motion?

• Linear velocity is the sum of angular velocity and radius

• Linear velocity is the difference between angular velocity and radius

• Linear velocity is the product of angular velocity and radius

• Linear velocity is the square of angular velocity

What is the formula for centripetal acceleration using angular velocity?

• a = 4π²r/T²

• a = v²/r

• a = ωr²

• a = ω²r

What is the primary equation for calculating centripetal force?

• F = mr²ω

• F = mω²r

• F = ma

• F = mv²/r

How can centripetal force be calculated if angular velocity is known?

• F = mvr

• F = mωr²

• F = mv²/r

• F = mω²r

If a rock is swinging in a circle with a constant speed, what is needed to maintain its circular motion?

• An increasing radius

• A decreasing angular velocity

• A centripetal force

• A constant linear velocity

What is the centripetal acceleration of an object moving at 8 m/s in a circle of radius 5 m?

• 10 m/s²

• 16 m/s²

• 12.8 m/s²

• 6.4 m/s²

A pilot flying in a circle at 30 m/s with a radius of 100 m requires a force of 635 N. What is the pilot's mass?

• 50 kg

• 70.56 kg

• 60 kg

• 80 kg