ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 497

Question 2481

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Which law governs the motion of the center of mass of a system of particles?

Newton’s first law only
Newton’s third law
Law of gravitation
Newton’s second law applied to the center of mass

Question 2482

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What is the net effect of internal forces on the total momentum of a system?

They increase the total momentum
They decrease the total momentum
They reverse the momentum direction
They cancel out and produce no net change

Question 2483

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How is the linear momentum of a single particle defined?

p = m/a
p = F·t
p = m^2v
p = mv

Question 2484

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Which of the following is conserved when no external forces act on a system of particles?

Kinetic energy only
Potential energy only
Total mechanical energy
Linear momentum

Question 2485

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What role do internal forces play in the motion of the center of mass of a system?

They accelerate the center of mass
They slow down the center of mass
They change the direction of the center of mass
They have no effect on the center of mass motion