heat Flashcards
1
Q
what is a thermometer
A
a device that uses a property of matter that changes with temperature
2
Q
what is absolute zero
A
-273.15ºC or 0ºK
3
Q
what is a triple point
A
under certain conditions, water can exist as a solid, liquid and gas at the same time
4
Q
the formula for heating an object, Q=
A
mc(final temperature - initial temperature) ; where c = 4200J/Kg
5
Q
what are the 4 methods of heat transfer
A
conduction, convection, radiation, evaporation
6
Q
heat is measured in units of
A
joules, J
7
Q
temperature is measured in units of
A
degrees, º
8
Q
define conduction
A
the transfer of heat through a solid medium via atom and electron collisions
9
Q
define convection
A
transfer of heat due to the movement of molecules
10
Q
define radiation
A
transfer of heat via electromagnetic waves
