Thermal Energy Review (Heat, thermal energy, temperature)

transfer of energy by electromagnetic waves

radiation

What quantity measures the relationship between heat and temperature change?

specific heat

measure of the average kinetic energy of particles

temperature

What two things indicate amount of thermal energy?

temperature and amount of particles

Total amount of energy in all the particles of an object

thermal energy

tool used to measure temperature

thermometer

Convert 32 F to C

0 C

Thermal energy is expressed in units called...

joules (J)

Heat varies with __________, specific _______ capacity, and temp ________ of a substance.

mass, heat, change

liquid found inside older thermometers that expands when heated

mercury (Hg)

Heat is about how atoms...

move

Objects with higher temperatures have greater thermal energy.

True

What 3 ways does heat move?

conduction, convection, radiation

What causes a house to be warmer on top floor and colder on bottom floor?

convection

heat transferred by the movement of currents within a fluid

convection

flow in water that creates a circular motion when less dense fluid flows on top of more dense fluid

convection current

What are the 4 factors that affect temperature change in matter?

energy added or subtracted, temp extremes, amount of matter, type of matter

What 4 factors affect temperature change in matter?

energy added or subtracted, temperature extremes, amount of matter, type of matter

How many factors affect temp changes of matter?

4

What are the 3 scales for measuring temperature?

C, F, and K

Heat, thermal energy, and temperature are all the same.

False

Thermal energy always moves from colder to warmer objects.

False

mass x specific heat x change in temperature

Formula for Change in Energy

Zero on K scale represents...

absolute zero

heat transferred from one particle of matter to another without the movement of matter

conduction