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

The power required for an object to serve is function is equal to energy required per unit time. In this case, we have to bulbs: 50 watts and 100 watts. In the same length of time, it is expected that the 100 watt bulb has more energy than the 50 watt bulb, specifically two times the energy.