ROTATIONAL MOTION

How does the location of the centre of gravity affect an object's balance?

• It has no effect
• Higher CG improves balance
• An object balances only if the CG is over the base of support
• Balance depends only on weight

In Example 6.8, what is the total clockwise moment about G?

• Greater than anticlockwise
• Less than anticlockwise
• Zero
• Equal to total anticlockwise moment

What is the importance of the plumb line in finding CG?

• It measures mass
• It shows horizontal
• It indicates the vertical direction from the suspension point
• It generates electricity

How does the value of g influence the calculation of weight in Example 6.8?

• It changes the length
• It has no effect
• It converts mass in kg to force in newtons
• It alters the CG

Why does the suspended cardboard align in a specific way when hung from a point?

• Due to air flow
• Because of magnetism
• Because the string is twisted
• Because the centre of gravity moves directly below the suspension point