The rate at which a light bulb uses energy (converts electrical energy to light and heat) is usually printed on it-for example, "100 watts." A watt is a unit of power, which describes the rate of energy use. A power of 1 watt means that 1 joule of energy is being used each second. Hence, for every second that you leave a 100-watt light bulb turned on, you will have to pay the utility company for 100 joules of energy. Jeffrey Bennett, et al., The Cosmic Perspective, 3^rd edition A) Argument; conclusion: The rate at which a light bulb ... printed on it. B) Nonargument. C) Argument; conclusion: For every second ... 100 joules of energy. D) Argument; conclusion: A power of 1 watt ... used each second. E) Argument; conclusion: A watt is a unit of power ... rate of energy use.

Question

Quizplus · Accepted Answer

This passage presents an argument, with evidence given to support the conclusion that for every second a 100-watt light bulb is turned on, 100 joules of energy are used and must be paid for to the utility company. The other statements in the passage are nonarguments or descriptions of concepts related to the main argument.

The Rate at Which a Light Bulb Uses Energy (Converts