Electrical energy

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/electrical-energy

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the definition of electrical energy transfer?Energy transferred as electric charges move between points with different electric potential
2. What is the formula for work done?Work (Joules) = Charge (Coulombs) × Potential Difference (Volts)
3. How does electricity power our toys and lights?Electricity powers toys and lights by moving charges through wires. The movement does work and can turn into light, heat, or sound, depending on the device.
4. Why do we need electricity in hospitals?Electricity is essential in hospitals because it runs machines that help doctors see inside the body and keep patients alive. Devices like X‑ray machines, ventilators, and heart monitors need a steady electric supply.

Electric Potential Difference (Voltage): The difference in electrical potential between two points, driving the flow of charge.
Electric Current: The rate of flow of electric charge, measured in amperes.
Kilowatt-hour (kWh): A unit of energy equal to the work done by one kilowatt of power over one hour.