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When particles speed up and the volume of an object increases this is called
thermal expansion
Which one has a higher specific heat, sand or water?
water
The more particles an object has at a given temperature
The more thermal energy it has
A measure of the average kinetic energy of particles is
temperature
The more particles a substance has at a given temp, the more _______ it has.
thermal energy
What is the benefit of having trapped air between two window panes?
It acts as an insulator and keeps the heat from transferring.
Which is the highest temperature 100C, 100 F, or 100 K?
100 C
A material that does not conduct heat well
an insulator
Which two temperature scales have the same amount of change in temp?
Kelvin and Celsius
Which change in degree is larger, Celsius or Fahrenheit?
Celsius
No more Kinetic energy can be removed from matter at
absolute zero
when an object's temperature increases, the particles become more or less dense?
less dense
when an object's temperature increases, the particles contract or expand?
expand
when an object's temperature increases, the particles rise or sink?
rise
when an object's temperature increases, the particles speed up or slow down?
speed up
when an object's temperature decreases, the particles are more or less dense?
more dense
when an object's temperature decreases, the particles expand or contract?
Contract
when an object's temperature decreases, the particles rise or sink?
sink
what are the two factors that determine the thermal energy of a material?
number of particles and temperature
when an object's temperature decreases, the particles speed up or slow down?
slow down
what is being measured when we take the temperature of something?
average kinetic energy of atoms
Do larger things or smaller things heat up faster?
smaller
Carries heat in the form of electromagnetic waves in space
radiation
Mode of heat transfer that occurs in fluids but not in solids
convection
Land and sea breeze occurs due to which mode of transfer?-
convection
Mode of heat transfer that does not require a medium
radiation
Heat of the sun reaches us by which mode of transfer
radiation
What is happening when particles become less dense and decrease in volume?
thermal contraction
Thermal energy naturally transfers from _____ matter to ______ matter
hot to cold
What is it called when energy is transferred by movement of a heated fluid?
convection
What is the transfer of thermal energy by particles bumping into each other?
conduction
What do we call the transfer of thermal energy from a warm object to a cool object?
heat


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