ROTATIONAL MOTION

What is the condition for zero angular acceleration?

• Changing axis
• Increasing speed
• Constant angular velocity
• Zero radius

How is angular acceleration related to torque?

• Inversely proportional
• Unrelated
• Equal
• Directly proportional via moment of inertia

If a rotating body slows down, what is the direction of α relative to ω?

• Same as ω
• Perpendicular to ω
• Circular
• Opposite to ω

What is the vector nature of angular acceleration when ω increases along a fixed axis?

• Perpendicular to ω
• Opposite to ω
• Zero
• Same direction as ω

How does angular acceleration affect rotational motion?

• It keeps ω constant
• It stops rotation
• It changes the axis
• It changes the angular velocity