Paper 1: Efficent Heat Transfer Flashcards
1
Q
What does the efficiency of a device measure?
A
How much useful energy is transferred
2
Q
What does the rate at which thermal energy transfer through a wall of a house depend on?
A
The difference in temperature between the warmer interior and the colder exterior
The material the wall is made from
3
Q
What the equation for efficiency?
A
Efficiency = useful energy transferred by the machine / total energy supplied to the machine
