Question

15. How much energy does a 50-watt light bulb use compared to 100-watt light bulb if both are shining for the same length of time?

Answer 1

What do the ratings 50 watt and 100 watt tell you ?

Answer 2

not really understanding it

Answer 3

You need to look up how watts are defined, once you know that the question is straightforward

Answer 4

voltsxamps

Answer 5

volts x amps is a way to calculate electrical power, but you don't need that for this question.
What is the watt a unit of ?

Answer 6

50 watt and 100 watt thats all

Answer 7

15. How much energy does a 50-watt light bulb use compared to 100-watt light bulb if both are shining for the same length of time?

Answer 8

metre is a unit of length, second is a unit of time, kg is a unit of mass, you get the idea, to answer this question, you need to know what physical quantity is the watt a unit of, generally speaking