ROTATIONAL MOTION

What is the plane in which the circular motion of a particle occurs during rotation about a fixed axis?

• Parallel to the axis
• At 45 degrees to the axis
• Arbitrary orientation
• Perpendicular to the axis of rotation

Which rule determines the direction of the vector product ω × r?

• Left-hand rule
• Fleming's left-hand rule
• Right-hand rule
• Screw rule only

What is the direction of the linear velocity vector v = ω × r?

• Parallel to ω
• Parallel to r
• At 45 degrees to both
• Perpendicular to both ω and r

In the vector form, how is the linear velocity of a particle related to angular velocity and position vector?

• v = ω · r
• v = r × ω
• v = ω + r
• v = ω × r

What is the magnitude of the angular velocity vector ω?

• θ/t
• ∆θ × ∆t
• d²θ/dt²
• dθ/dt