ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 462

Question 2306

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In the absence of external forces, what governs the center of mass motion?

Temperature
Pressure
Initial velocity of the system
Color of objects

Question 2307

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What is the path of a star in the lab frame if the CM is moving?

Perfect circle
Straight line
A combination of straight-line drift and circular orbit
Spiral outward

Question 2308

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How does the center of mass motion help in analyzing collisions?

It increases heat
It reduces mass
It allows separation of overall motion from relative motion
It changes charge

Question 2309

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Why is the center of mass frame called the 'zero-momentum frame'?

Because no motion
Because energy is zero
Because the total linear momentum is zero in this frame
Because time stops

Question 2310

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What is the role of Fig. 6.13 in illustrating decay kinematics?

Shows energy loss
Shows temperature change
It shows how CM motion is preserved in different frames
Shows magnetic effects