Force, Mass, and Acceleration

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Objective

I can use Newton's second law to solve problems involving force, mass, and acceleration.

Part 1 of 4

Warm-up video

Flipping Physics · 9:42

We don't generate video — this one is by Flipping Physics on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 4

Key concepts

3 concepts

  1. 1

    Newton's Second Law of Motion states that net force equals mass times acceleration, where both force and acceleration are vectors.

  2. 2

    When using Newton's Second Law, you need to identify the direction in which you are summing the forces.

  3. 3

    A free body diagram shows the directions of forces, and Newton's Second Law helps to figure out the magnitudes of the forces and the acceleration of an object.

Part 3 of 4

Practice

12 questions

1

State Newton's Second Law of Motion in equation form.

2

What does the Greek symbol sigma (Σ) represent in the context of Newton's Second Law?

Part 4 of 4

Exit ticket

Quick comprehension check

A 2.0 kg block is pulled across a table with a force of 10.0 N. If the frictional force opposing the motion is 4.0 N, what is the acceleration of the block? Show your work.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

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Force, Mass, And Acceleration Lesson Plan for 9th Grade | Free Physics Lesson