Questions: Energy Conversion

Question 1

What energy conversion happens when you turn on a lamp?

• A. Light to chemical
• B. Kinetic to sound
• C. Electrical to light and heat
• D. Sound to electrical

Answer: (C)

A lamp converts electrical energy into light energy and heat energy. If you touch a light bulb that has been on, you can feel the heat.

Question 2

Your body converts chemical energy from food into kinetic energy when you run.

• T. True
• F. False

Answer: True

The food you eat contains chemical energy. Your body breaks it down and converts that energy into motion (kinetic energy) and heat.

Question 3

What form of energy does a solar panel's input start as, and what does it convert to?

Model answer: A solar panel converts light energy from the Sun into electrical energy.

Solar panels absorb sunlight (light energy) and convert it into electrical energy that can power homes and devices.