Newton-second

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/newton-second

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 for?Impulse, defined as the integral of force over time
2. What is the dimensional formula?M L T⁻¹ (Mass × Length × Time⁻¹), identical to momentum
3. How can a tiny push for a short time make big things move?Even a small force applied for a short time gives an impulse that changes an object's momentum. That change in momentum can make the object start moving or speed up.
4. Why do car designers use the Newton-second?Engineers use impulse to design crumple zones and airbags that spread the force over a longer time. This helps keep people inside the car safer during a crash.

Impulse: The effect of a force acting over a specific duration, resulting in a change in momentum.
Momentum: A vector quantity representing an object's mass in motion, calculated as mass times velocity.
Dimensional Analysis: A method of checking the consistency of physical equations by examining the dimensions of the quantities involved.