8.11.1 - Electric Power
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is the unit of electric power?
💡 Hint: Think about what we measure electrical consumption in.
If a device uses 100 W of power for 2 hours, how much energy does it consume?
💡 Hint: Use the formula E = Pt.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is electric power measured in?
💡 Hint: Remember the term that represents the rate of energy usage.
True or False: The formula for electric power can be expressed as P = IV.
💡 Hint: Think about how voltage and current relate to power.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
A power plant generates 1 megawatt (MW) of electricity. If it runs for 10 hours, how much energy does it produce in kilowatt-hours?
💡 Hint: Convert megawatt to kilowatts and multiply by the time.
You have a power strip with five outlets, each rated at 1200 W. If you plug in four devices, how much maximum power can be consumed without exceeding the rating?
💡 Hint: Multiply the number of devices by the wattage of each.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.