ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 275

Question 1371

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What is the role of trial and error in finding the CG of an irregular object?

It increases weight
It damages the object
It measures temperature
It helps locate the point where torque balance occurs

Question 1372

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How is the centre of gravity different from the centre of mass in theory?

CG is always lower
COM is heavier
CG depends on gravity, COM depends only on mass distribution
They are identical in all cases

Question 1373

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What is the effect of increasing mass on the position of the centre of gravity?

It remains unchanged
It disappears
It shifts toward the added mass
It moves upward

Question 1374

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Why doesn't the cardboard fall when supported at CG?

Because it is light
Because of magnetic force
Because it is glued
Because it is in mechanical equilibrium

Question 1375

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What determines the lever arm in gravitational torque calculation?

Mass of the particle
Color of the object
Angle of view
Perpendicular distance from CG to line of force