Question

Current: 1,500 watts
Time: 2 hours
Kilowatt-hours: ?

Answer 1

1 kilowatt = 1000 watts

Answer 2

ok that makes sense so how do I calculate kiowatt hours? :)

Answer 3

not quite sure about that; don't think I understand the question

Answer 4

"Current: 1,500 watts"
The question is incorrect here. It should read "Power: 1,500 watts"

Answer 5

Firstly convert 1500 watts to kilowatts. Can you do that?

Answer 6

@kropot72. Hello! :) I'm not sure what you are saying about this..

Answer 7

Do you know how to convert watts into kilowatts? For example, how many kilowatts are there in 5000 watts?

Answer 8

1000 kilowatts? :)

Answer 9

0.75kilowatts/hour

Answer 10

In the example that I gave you:
5000 watts = 5 kilowatts
the reason being that one thousand watts = one kilowatt, therefore five thousand watts = 5 kilowatts.

So, in your problem, one thousand five hundred watts = 1.5 kilowatts.
Power of 1.5 kilowatts is used for 2 hours.
Energy in kilowatt-hours = power in kilowatts multiplied by the time in hours for which the power is consumed.
\[Energy\ (kilowatt-hours)=1.5\times 2=?\ kilowatt-hours\]

Answer 11

So you take the kilowatt - hours and then you get 1.5 times 2 and then you get 3 so then?

Answer 12

Oh that's the answer! Thank you :]

Answer 13

Correct! The energy used is 3 kilowatt-hours.

You're welcome :)