Rotational Motion

What is the vector that has a magnitude of 𝑑𝜃 and is measured in degrees, radians, or revolutions?

• Angular Displacement

• Angular Acceleration

• Angular Position

• Angular Velocity

What is the time rate of change in the angular position called?

• Angular Acceleration

• Angular Velocity

• Angular Displacement

• Angular Position

Which vector has a magnitude often measured in rad/s and its direction is along the axis of rotation?

• Angular Velocity

• Angular Position

• Angular Acceleration

• Angular Displacement

What measures the time rate of change of the angular velocity?

• Angular Position

• Angular Displacement

• Angular Velocity

• Angular Acceleration

What is the normal component of acceleration always directed towards?

• The axis of rotation

• The point P

• The tangent to the circular path

• The center of the circular path

A flywheel is making 300 rpm. Its angular velocity in radian per second is

• 5

• 5𝜋

• 10𝜋

• 15𝜋

What is the SI unit of angular velocity?

• rad/s

• m/s

• kg/s

• Nm

Which of the following is a scalar quantity related to rotational motion?

• Angular Velocity

• Angular Acceleration

• Angular Displacement

• Angular Momentum

What is the formula to calculate angular acceleration?

• Δθ/Δt

• Δω/Δt

• Δv/Δt

• Δs/Δt

If a cyclist turns around a right angled corner at a speed of 16 fps, making a turn in 0.8 seconds, then he must lean over at an angle of nearly _____

• 45 degrees

• 90 degrees

• 15 degrees

• 60 degrees