What can a flashlight use to produce light?
energy usage calcite prism batteries gold energy heat energy thoughts
A B C D E F G H
Electricity is usually provided by batteries or AC current.
a flashlight can use batteries to produce light
What can a flashlight use to produce light? (A) energy usage (B) calcite (C) prism (D) batteries (E) gold (F) energy (G) heat energy (H) thoughts