Lesson 2.5.2

Lesson 2 — Forces and Newton's Third Law

Get Focused

When objects react with one another there are action and reaction forces that act on the objects. In this lesson we will investigate how action and reaction forces related to the momentum of objects involved in a collision.

Consider the following essential questions as you complete Lesson 4:

  • What is an action force ?
  • What is a reaction force ?
  • How does momentum related to Newton's Third Law

Vocabulary

Below is a link to the Science 20 Glossary. Make sure you can identify and define the terms within the glossary that correspond with this lesson.

Science 20 Glossary

 

 

ReadRead

Read pages 257 -263 in the Science 20 Textbook. There is a text link below

Lesson 5.4 Text

Explore

Click on the link below to explore the lesson content

2.5.2 Content Link

image2 Watch and Listen

 

Self Check

 

Try the questions on page 262 to check your knowledge.

Reflect and Connect

Imagine you run into a door. Describe the action and reaction forces that would be acting on you and the door in the collision. Post your description to the discussion forum.

image Module 5 : Lesson 2 Assignment.

Once you have completed all of the learning activities for this lesson, you can complete the online assignment.

Sci20 2.5.2 online assignment

Lesson Summary

In this lesson you discovered the relationship between Newton's Third Law and momentum.

Lesson 3 will look at the Law of Conservation of Momentum.