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
