# Segment I: Electrical Power

We investigate the concept of electrical power by examining our own energy usage with an energy audit. Multiple electric power equations are derived, exploring the relationship between electric power and Ohm's law.

## Segment I: Electrical Power

Segment I: Electrical Power

We investigate the concept of electrical power by examining our own energy usage with an energy audit. Multiple electric power equations are derived, exploring the relationship between electric power and Ohm's law.

### Science

SP5

Obtain, evaluate, and communicate information about electrical and magnetic force interactions.

SP5.d

Plan and carry out an investigation of the relationship between voltage, current, and power for direct current circuits.

-Define electrical power as the electrical work done per unit time.

-Calculate electrical power with equations derived using Ohm’s Law.

-Connect the concept of electrical power to the real world by performing an energy audit.

efficiency - ratio of the total energy output divided by the energy input into a device.

electrical power (P) - the electrical work done per unit time; SI unit is the watt (W).

electrical work (W) - the work done on a charged particle by an electric field.

The Physics in Motion teacher toolkit provides instructions and answer keys for study questions, practice problems, labs for all seven units of study. GPB offers the teacher toolkit at no cost to Georgia educators.To order your teacher toolkit, complete and submit this form to request the teacher toolkit. You only need to submit this form one time to get materials for all seven units.