Understanding Angular Acceleration

What must you understand before learning about angular acceleration?

• Gravitational force

• Uniform and non-uniform angular velocity

• Linear velocity

• Kinetic energy

How does the minute hand of a clock demonstrate uniform angular velocity?

• It stops every hour

• It changes direction frequently

• It speeds up over time

• It completes one revolution in 60 minutes

What is the initial angular velocity of the Ferris wheel?

• 15 Radian per second

• 0 Radian per second

• 10 Radian per second

• 5 Radian per second

What does a non-uniform angular velocity indicate about a body's motion?

• The body has constant speed

• The body is at rest

• The body has angular acceleration

• The body is moving in a straight line

What is angular acceleration?

• The rate of change of speed

• The rate of change of distance

• The rate of change of angular velocity

• The rate of change of linear velocity

What is the SI unit of angular acceleration?

• Meter per second

• Newton

• Radian per second square

• Radian per second

How is angular acceleration denoted?

• Alpha

• Beta

• Delta

• Gamma

What is the direction of angular acceleration?

• Randomly oriented

• Perpendicular to the axis of rotation

• Opposite to the axis of rotation

• Along the axis of rotation

If a body rotates with uniform angular velocity, what is its angular acceleration?

• Zero

• Infinite

• Negative

• Positive

What is the angular acceleration of the bike's wheel if its velocity changes from 0 to 50 Radian per second in 10 seconds?

• 2 Radian per second square

• 5 Radian per second square

• 10 Radian per second square

• 15 Radian per second square