ROTATIONAL MOTION

What is the direction of torque defined by?

• Left-hand rule
• Magnitude of force
• Direction of r only
• Right-hand rule

If a and b are perpendicular unit vectors, what is |a × b|?

• 0
• 1
• 2
• √2

What is the cross product of i and k?

• j
• −j
• i
• 0

Which rule involves curling fingers from a to b?

• Screw rule
• Left-hand rule
• Right-hand rule
• Palm rule

What is the angle used in the cross product formula?

• The larger angle
• The angle from b to a
• The smaller angle between the vectors
• Any angle between vectors