Loading the lesson
Loading the lesson
Search AllRounder.ai
Search the courses, subjects, tracks, games and features, or jump straight to a page.
Search the courses, subjects, tracks, games and features, or jump straight to a page.
4 cards from this section. Quick, good the night before a test.
What is the SI unit of power?
Think about the unit related to energy consumption per time.
If an appliance operates at 100 W for 1 hour, how much energy does it consume?
Use the formula E = Pt with time in hours.
What is electric power measured in?
Think of the unit for power.
Electric energy is calculated as power multiplied by what?
Remember the formula E = Pt.
A 2000 W electric kettle takes 10 minutes to boil water. How much energy is consumed in kilojoules?
Convert time from minutes to seconds to ensure units match.
If a device operates at 500 W for 4 hours, how many kilowatt-hours does it consume?
Remember to convert hours into Wh for the final answer.
6 more questions in this section. Enroll free to practise them all.
Enroll free