ROTATIONAL MOTION

What happens to angular acceleration if a body rotates at constant angular velocity?

• It increases
• It decreases
• It becomes infinite
• It is zero

In the equation α = dω/dt, what does α represent?

• Linear acceleration
• Angular displacement
• Force
• Angular acceleration

What is the purpose of defining angular acceleration?

• To measure total rotation
• To calculate linear speed
• To determine position
• To quantify the change in rotational speed

Why is angular acceleration treated as a scalar in fixed-axis rotation?

• Because it has no direction
• Because it is always zero
• Because the body is stationary
• Because the direction of ω is constant

What is the rotational analogue of linear acceleration?

• Force
• Torque
• Velocity
• Angular acceleration