topic 2 energy transfer by heating Flashcards
1
Q
what is thermal conductivity?
A
a measure of how good something is at conducting heat
2
Q
what is an insulator (thermal)
A
a substance that has a low thermal conductivity and reduces energy transfers
3
Q
what is a conductor (thermal)
A
a substance with a high thermal conductivity and is good at transferring heat energy
4
Q
what is specific heat capacity?
A
the amount of energy needed to change the temperature of 1kg of a substance by 1°c. the units are J/Kg/°C
5
Q
what is a joulemeter?
A
a device that measures energy supplied
