Solids and Plasmas

Question 1

Which description best characterizes the motion of particles in a solid?

Revolt · Accepted Answer

vibrating around fixed positions

Question 2

Which state of matter is characterized by ionized particles, no definite shape or volume, and good electrical conductivity?

Revolt · Accepted Answer

plasma

Question 3

The repeating subunits that are responsible for the shape of a crystal are known as

Revolt · Accepted Answer

unit cells.

Question 4

A plasma that has particles that never collide frequently enough to exchange kinetic energy and never reach a temperature equal to the surroundings is categorized as a

Revolt · Accepted Answer

nonthermal plasma.

Question 5

Temperature depends on the average kinetic energy of the particles in a sample. How does this help explain why a plasma-based light does not have a high temperature?

Revolt · Accepted Answer

Most particles in the plasma are heavy, slow, and very low density.

Question 6

Which best explains why a crystal is incompressible?

Revolt · Accepted Answer

There is little, if any, space left between its adjacent molecules.

Question 7

What happens when the kinetic energy of molecules increases so much that electrons are released by the atoms, creating a swirling gas of positive ions and negative electrons?

Revolt · Accepted Answer

Matter changes to a plasma state.

Question 8

Which is an example of plasmas in nature?

Revolt · Accepted Answer

auroras

Question 9

Which low-energy state of condensed matter is characterized by structural rigidity and resistance to changes of shape or volume?

Revolt · Accepted Answer

solid

Question 10

What are thermal plasmas?

Revolt · Accepted Answer

plasmas that reach a temperature equal to their surroundings

Solids and Plasmas Answers

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