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/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 fundamental property?Opposition to the flow of electric current or mechanical motion
2. What is the SI unit?Ohm (Ω), defined as volts per ampere
3. What is resistance in science?Resistance is when something pushes back against energy or motion, like friction or electric resistance.
4. Why do we need resistance in everyday things?Resistance helps control electricity, heat, and keeps things moving safely, like brakes on cars and heating in bulbs.

Electrical Resistivity: An intrinsic material property measuring how strongly it resists electric current flow.
Joule Heating: The process where the passage of an electric current through a conductor produces heat.
Friction: A force opposing motion when surfaces slide against each other, converting energy to heat.
Drag: Resistance encountered by an object moving through a fluid (liquid or gas).