Advertisement Upgrade to remove ads

temperature

a measure of the average kinetic energy of its particles

Kelvin

the SI unit for temperature (K)

thermal energy

the sum of the kinetic and potential energy of all the particles that make up an object

heat

thermal energy that flows from something at a higher temperature to something at a lower temperature

specific heat

amount of thermal energy needed to raise the temperature of 1 kg of some material by 1°C

4 states of matter

solid, liquid, gas, plasma

solid

particles are packed closely together and are constantly vibrating in place- strong attractive forces hold particles in place

liquid

attractive forces between particles are weaker than in a solid and can slide past each other- attractive forces are strong enough to cause particles to ling together- definite volume but not definite shape

gas

particles are far apart and attractive forces between them are weak-particles do not cling together- no definite shape or volume

plasma

made of electrically charged particles-matter consisting of positively and negatively charged particles and does not have a definite shape or volume

conduction

the transfer of thermal energy between colliding particles

convection

the transfer of thermal energy by the movement of warmer and cooler materials occurs in a fluid by the movement of fluid from place to place

thermal conductor

a material in which thermal energy is transferred easily

thermal insulator

a material in which thermal energy moves slowly

radiation

the transfer of energy by electromagnetic waves

convection current

rising of warmer fluid and sinking of cooler fluid

condensation

forms when the air around matter cools enough so that water vapor in the air changes to a liquid

vaporization

temperature increases, particles in liquid move faster and become farther apart and no longer cling together- vaporization occurs as liquid changes into gas- can occur within the liquid or at the surface of the liquid

evaporation

vaporization that occurs at the surface of a liquid- causes temperature of liquid to decrease

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set