Solids and Plasmas — Quiz

Question 1

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 2

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 3

How does the motion of particles in the sun’s plasma compare to the motion of particles in a solid?

Revolt · Accepted Answer

Particles in the plasma move randomly, but particles in a solid vibrate in one place.

Question 4

Which is an example of plasmas in nature?

Revolt · Accepted Answer

auroras

Question 5

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

Revolt · Accepted Answer

unit cells.

Question 6

Substance cap x has a fixed volume, and the attraction between its particles is strong. Substance Y has widely spread out particles and can be compressed. What can most likely be concluded about these substances?

Revolt · Accepted Answer

Substance cap x is a plasma, and substance cap y is a crystal.

Question 7

What are thermal plasmas?

Revolt · Accepted Answer

plasmas that reach a temperature equal to their surroundings

Question 8

Which reason best explains why plasmas are good conductors of electricity?

Revolt · Accepted Answer

They have mobile charged particles.

Question 9

Which best explains why a crystal is incompressible?

Revolt · Accepted Answer

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

Question 10

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

Revolt · Accepted Answer

plasma

Solids and Plasmas — Quiz Answers

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