Question

a student is observing a standard (incandescent) light bulb and claims that there are at least two different energy transformations occurring. which statement best evaluates the claim? a the claim is incorrect because the only transformation is from electrical energy to light energy. b the claim is incorrect because the only transformation from heat energy to light energy. c the claim is correct because electrical energy is being transformed into heat energy and light energy. d the claim is correct because heat energy is being transformed into light energy and then electrical energy.

Explanation:

Step1: Understand energy transformation in incandescent bulb

In an incandescent light - bulb, electrical energy is supplied.

Step2: Identify energy transformations

Most of the electrical energy is first converted into heat energy and a part of it is converted into light energy. So there are at least two energy - transformations (electrical to heat and electrical to light).

Answer:

D. The claim is correct because electrical energy is being transformed into heat energy and light energy.