Written Laser Hair Removal Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Ace your laser hair removal certification with our comprehensive practice exam. Featuring multiple-choice questions, detailed explanations, and hints, get the preparation you need to ensure success.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is a joule a unit of?

Power
Frequency
Energy or Work
Intensity

The correct answer is: Energy or Work

A joule is a unit of energy or work, which is the amount of force needed to move an object over a certain distance. Power (A) is the rate at which work is done or energy is transferred. Frequency (B) is the number of occurrences of a repeating event per unit of time. Intensity (D) is the amount of energy transferred per unit of area. Therefore, these options are not correct as they do not accurately describe what a joule is a unit of.