ROTATIONAL MOTION

What role does the mass distribution play in locating the centre of gravity?

• It has no role
• It makes the CG lighter
• It determines where the balancing point will be
• It hides the CG

If the total torque on a body about a point is zero, what can be concluded?

• The body is at rest
• The body is in translational equilibrium
• The body is in rotational equilibrium about that point
• The body has no mass

Which principle ensures that a balanced cardboard does not accelerate linearly?

• Rotational equilibrium
• Conservation of energy
• Newton's first law of motion
• Translational equilibrium

What happens to the centre of gravity when a body is deformed?

• It remains fixed
• It disappears
• It may shift depending on mass redistribution
• It moves to the edge

How does the shape of a body affect the location of its centre of gravity?

• It has no effect
• It makes the CG always central
• It determines the distribution of mass and thus the balance point
• It shifts the CG outside the material