3:3 Solids And Plasmas

Learning Targets:1

Learning Targets:2

Learning Targets:3

Which low-energy state of condensed matter is characterized by structural rigidity and resistance to changes of shape or volume? A gas B liquid C plasma D solid

How does the motion of particles in the sun's plasma compare to the motion of particles in a solid? A Particles in both the plasma and a solid move around to fill available space. B Particles in the plasma move randomly, but particles in a solid vibrate in one place. C Particles in the plasma have low kinetic energy, but particles in a solid have high kinetic energy. D Particles in both the plasma and a solid are made up of fast-moving electrons and cations.

The repeating subunits that are responsible for the shape of a crystal are known as A unit cells B heavy nuclei C light electrons D amorphous cells

Which best explains why a crystal is incompressible? A Its molecules remain in position without vibrating. B The molecules of a crystal behave like those of a gas. C There is little, if any, space left between its adjacent molecules. D Its molecules switch positions when they are compressed.

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? A Matter changes to a solid state. B Matter changes to a liquid state. C Matter changes to a plasma state. D Matter changes to a gaseous state

Which reason best explains why plasmas are good conductors of electricity? A They have mobile charged particles. B They are at extremely high temperatures. C They are made up of particles in fixed positions. D They have slow-moving nuclei that carry electricity.

What are thermal plasmas? A plasmas that have particles that collide infrequently B plasmas that reach a temperature equal to their surroundings C plasmas that do not reach thermal equilibrium D plasmas that have only a few particles ionized at any given moment

A group of students are wandering around a room. When their teacher claps, the students sit down wherever they are. This situation best models the formation of which type of solid? A an amorphous solid because the particles do not have a regular structure B an amorphous solid because the motion of the particles stopped C a crystalline solid because the moving particles lock into fixed positions D a crystalline solid because the particles have a long-range order

Temperature depends on the average kinetic energy of the particles in a sample. How does this help with explaining why a plasma-based light does not have a high temperature? A No particles in the plasma have high kinetic energy. B The fastest particles have the greatest mass. C Most particles in the plasma are heavy and slow. D The fastest particles transfer most of their energy through collisions.

Which is an example of a plasma that occurs in nature? A a burning tree B the radiant sun C a melting candle D an electric current