Voltage

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/voltage

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 SI unit?Volt (V), equivalent to one joule per coulomb (J/C)
2. What is the discoverer of the voltaic pile?Alessandro Volta
3. Why do batteries need voltage?Batteries give the push that lets electrons move through wires, powering lights and toys.
4. How does a battery create voltage?Batteries use chemical reactions to separate charges, creating a difference that pushes electrons.

Electromotive Force (EMF): The voltage developed by any source of electrical energy.
Electric Potential Difference: The difference in electric potential energy per unit charge between two points.
Electric Current: The rate of flow of electric charge, measured in amperes (A).
Resistance: A measure of how much a material opposes the flow of electric current, measured in ohms (Ω).