Current, Charge, Power Flashcards
1
Q
What happens when an electrical charge flows through a resistor?
A
It gets hot
2
Q
What type of bulb wastes a lot of energy through heating?
A
Filament bulbs
3
Q
What type of bulb wastes less energy?
A
Compact fluorescent lamps
4
Q
What should you consider when buying an electrical appliance?
A
How efficiently they transfer energy
5
Q
What is power?
A
The rate at which energy is transferred by an appliance
6
Q
What’s power measured in?
A
W
7
Q
What’s energy measured in?
A
J
8
Q
What’s time measured in?
A
s
9
Q
What’s current measured in?
A
A
10
Q
What’s potential difference measured in?
A
V
11
Q
What’s charge measured in?
A
C, coulombs
