ROTATIONAL MOTION

Where does the weight of a uniform rod act?

• At one end
• At the midpoint of the rod
• At the point of support
• At its centre of gravity

Is the CG always within the physical material of an object?

• Yes, always
• No, but it vanishes
• No, it can be in empty space
• Yes, except in water

Why is the CG important in sports?

• It increases speed
• It reduces fatigue
• It affects balance, agility, and performance
• It changes uniform color

How does the height of the CG affect stability?

• Higher CG is always better
• CG height has no effect
• Lower CG increases stability
• It only matters for airplanes

Can the CG be determined for liquids?

• No, liquids have no CG
• Yes, and it is always central
• Yes, but it may shift with container shape and movement
• No, because they are wet