Science Worksheet · Grades 6–8
Newton’s Laws of Motion Worksheet
A printable science worksheet for grades 6-8 on Newton’s three laws of motion: inertia, force and mass, and action-reaction. Students classify eight everyday examples by law, then answer four short-response questions. A complete answer key is included.

Subject
Science
Grades
Grades 6–8
Skill Focus
Newton’s Laws of Motion, force and motion
Lesson Length
20 minutes
Lesson Overview
About this worksheet
Sir Isaac Newton described three laws that explain how forces change motion. The first law is the law of inertia, the second law links force to mass and acceleration, and the third law says every action has an equal and opposite reaction. This worksheet helps students recognize each law in everyday events.
Section A on page 1 gives eight examples, and students write first, second, or third law for each. The reference box teaches all three with a rolling-ball example, a loaded-cart example, and a swimmer example, so the assessed examples stay independent of the model.
Section B on page 2 asks what the first law says about an object at rest, why the second law makes heavy objects harder to speed up, the third law in the student’s own words, and a new example of the third law. Page 3 is a complete answer key with sample answers. The skill builds on force and motion.
How to Use This Lesson
Read the reference box aloud and demonstrate inertia with a quick desk activity.
Complete Section A independently – have students match each event to one law.
Discuss the action-reaction pairs in the third-law examples.
Use the answer key on page 3 for self-check.
Pair with the Force and Motion Worksheet or the Friction Worksheet.
Printable Resource
A classroom-ready PDF with everything in one printable resource.
Full Member Resource · Printable PDF · 3 pages · Answer Key
Newton’s Laws of Motion Worksheet
A printable science worksheet for grades 6-8 on Newton’s three laws of motion: inertia, force and mass, and action-reaction. Students classify eight everyday examples by law, then answer four short-response questions. A complete answer key is included.
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