Power Flashcards
1
Q
Location
A
13
2
Q
symbol
A
dart board
3
Q
Power
A
watt James Watt,
P
scalar
4
Q
Definition
A
rate of doing work or of transferring heat
5
Q
joule per second (J/s), known as
A
Watt
6
Q
equation
A
work divided by time
7
Q
Calculate the power of an appliance that uses 1000 joules of energy in 5 seconds.
A
200 W
8
Q
Power, potential difference and current are correctly related by which equation?
A
P = I x V
9
Q
What is the voltage of an appliance if it uses 200 J per second when supplied with a current of 5 A?
A
40 V
10
Q
What is the energy transferred if the voltage is 5 V and the charge is 10 C?
A
50 J
