ROTATIONAL MOTION

What is the symbol used to denote instantaneous angular velocity?

• θ
• α
• ω
• v

What does the limit of ∆θ/∆t as ∆t tends to zero represent?

• Average angular acceleration
• Total angular displacement
• Instantaneous angular velocity
• Angular momentum

How is average angular velocity defined for a finite time interval ∆t?

• ∆t/∆θ
• ∆θ × ∆t
• d²θ/dt²
• ∆θ/∆t

What is the definition of angular displacement in rotational motion?

• The linear distance moved by the particle
• The angle described by the particle as it moves along a circular path
• The change in radius of the circle
• The time taken to complete one revolution

What is the direction of the linear velocity vector of a particle moving in a circle during rotational motion?

• Radially outward
• Radially inward
• Along the axis of rotation
• Along the tangent to the circle at that point