Electrical resistance

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-resistance

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 measurement unit?The SI unit of electrical resistance is the Ohm (Ω)
2. Why do metals have low resistance?Metals have a very ordered atomic structure and loosely bound electrons, so electrons can move easily and collide less, making them good conductors.
3. How does Ohm's Law help us?Ohm's Law says that voltage, current, and resistance are linked by V = IR. It lets engineers predict how much current will flow when we know the voltage and resistance.

Joule Heating: The process where electrical energy is converted into thermal energy due to resistance.
Resistivity: A fundamental property of a material that indicates how strongly it resists electric current flow.
Superconductor: A material that exhibits zero electrical resistance below a specific critical temperature.