48
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Unit Test — Cumulative exam

Question 48 • Liberty - Physics A

Which properties can be used to determine whether a substance is a liquid or a plasma? Check all that apply.the mass of the substancethe container of the substancethe charge of the substance’s particlesthe distance between the substance’s particlesthe compressibility of the substancethe color of the substance

Answer
A
the mass of the substance
B
the container of the substance
C
the charge of the substance’s particles
D
the distance between the substance’s particles
E
the compressibility of the substance
F
the color of the substance

Explanation

A plasma contains charged particles, while the particles in an ordinary liquid are generally neutral, so particle charge helps distinguish them. Liquid particles are close together and liquids are difficult to compress; a plasma is much less dense, so its particles are farther apart and it is more compressible. Mass, container shape, and color do not reliably identify whether a substance is a liquid or a plasma.

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