P1.3 - The usefulness of Electrical Appliances Flashcards
1
Q
What is transferred energy measured in?
A
kWh (kilowatt hours)
2
Q
What is power measured in?
A
Watts or kilowatts
3
Q
What is energy measured in?
A
Joules
4
Q
What does the energy transferred by an appliance depend on?
A
How long the appliance is switched on for and its power
5
Q
What are filament lamps?
A
Bulbs which contain a thin filament which glows when electricity passes though it