ROTATIONAL MOTION

If two wheels have the same angular acceleration but different initial angular velocities, which one will have greater angular velocity after the same time?

• The one with lower initial angular velocity
• Both will have the same
• The one with higher initial angular velocity
• Cannot be determined

What is the angular velocity of a body at the instant it reverses its direction of rotation?

• Maximum
• Negative
• Zero
• Positive

How does doubling the time affect angular displacement when starting from rest with constant angular acceleration?

• It doubles
• It remains the same
• It increases by a factor of four
• It halves

What is the shape of the angular velocity-time graph for a body with constant angular acceleration?

• Horizontal straight line
• Parabolic curve
• Straight line with non-zero slope
• Vertical line

What is the physical significance of the area under an angular velocity-time graph?

• Angular acceleration
• Torque
• Angular displacement
• Rotational kinetic energy