1. Lesson 4: Newton’s First Law of Motion
EQOD: How can you predict an object’s direction and motion?

2. Initial Thoughts:
Let’s say you have a penny on top of a card placed on the open end of a cup.
What do you think will happen to the penny when you slowly pull away the card versus when you click the card away quickly?
Now you try it out!

3. Evidence I: Isaac who?
What you just saw happen to the penny has to do with a little something called Inertia.
Inertia is a property of matter in which an object continues to stay in its state of motion unless a force acts upon it.
Basically: If an object is still, it stays still UNLESS you move it.
Likewise, if an object is moving in a straight line, it will continue to move in a straight line unless you change direction.
Example: Cars, Soccer balls, etc.

4. Evidence I: Isaac who?
We will continue to learn about inertia and how force works.
However, first we must learn about a great Physicist who helped define the 3 Laws of Motion.
This gentleman also invented Calculus and is the reason why we first began to understand Gravity.
Do you know who this physicist was?

5. Evidence I: Isaac who?
We will continue to learn about inertia and how force works.
However, first we must learn about a great Physicist who helped define the 3 Laws of Motion.
This gentleman also invented Calculus and is the reason why we first began to understand Gravity.
Do you know who this physicist was?
Sir Isaac Newton!

6. Evidence I: Isaac who?
Today we will learn more about the accomplishments done by Sir Isaac Newton using some Critical Thinking Strategies.
Clean Read
Purposeful Read
Share Responses.
Clean Read: We will take 7 minutes to go through the article on our own in Level 0 voices. Take your time, don’t worry about highlighting or annotating yet :)

7. Evidence I: Isaac who? Clean Read Purposeful Read Share Responses.
Highlight or underline at least four sentences that help you answer the following question(s):
What are the Newton’s 3 Laws of Motion?
Why do you think some of Newton’s discoveries were important for the scientific world?

8. Evidence I: Isaac who? Clean Read Purposeful Read Share Responses.
Now, take 5 minutes to write a 3-4 sentence summary of the article using at least 2 supporting details from the article.
According to the article “Inventors and Scientists: Sir Isaac Newton”, Isaac discovered ______________________________________. The article also mentions that ____________________________________. Thes discoveries were important because ______________________________________.

9. Evidence I: Isaac who? Clean Read Purposeful Read Share Responses.
Now, take 5 minutes to write a 3-4 sentence summary of the article using at least 2 supporting details from the article.
According to the article “Inventors and Scientists: Sir Isaac Newton”, Isaac discovered ______________________________________. The article also mentions that ____________________________________. Thes discoveries were important because ______________________________________.

10. Evidence II: First Law of Motion
There are 3 Different Laws of Motion, today we will focus on the First Law which has to do with Inertia.
The First Law of Motion states that objects at rest stay at rest. When an object is in motion, it will continue in the same direction unless a force is acted upon it.
Example: Moving in a car and suddenly stopping!

11. Evidence II: First Law of Motion
We can predict the direction of an object according to the Net Force implemented on an object.
Net force, is the vector sum of all force acting upon an object.
A vector shows the amount of force and its direction applied on an object

12. Evidence II: First Law of Motion
Examples:

13. Evidence II: First Law of Motion
Examples:

14. Evidence II: First Law of Motion
Examples:

15. Evidence II: First Law of Motion
Examples:
What is the net force?
What direction will the box go to?
10N
30N

16. Evidence II: First Law of Motion
Examples:
What is the net force?
What direction will the box go to?
10N
30N
Downwards Direction with a Net Force of 20N

17. Evidence II: First Law of Motion
Examples:
What is the net force?
What direction will the box go to?
23N
42N

18. Evidence II: First Law of Motion
Examples:
What is the net force?
What direction will the box go to?
19N in a Leftwards Direction
23N
42N

19. Analysis Restate the definition of inertia in your own words
Jaime was pushing a door to close but it suddenly stopped. He realized he had accidentally slammed the door on Lamar. How is this an example of the First Law of Motion?
Xochitl was ice skating in the Kroc Center and she pushing herself with a force of 360N. However, this was the first time she ice skated and she couldn’t stop. To help her, her friend Michael pushed her with a force of 420N. Label the diagram below to show the two forces acting on Xochitl. What is her net force and direction?

20. Reflection and Vocabulary
Go on Google Classroom and follow directions for the Lesson 3 Worksheet.
Words for this Lesson
Inertia
Newton’s First Law of Motion
Net Force

21. Summary
Take 7 minutes to write a summary about what you learned about Newton’s First Law of Motion and Net Force. Please make sure you have 4-5 FULL and COMPLETE sentences.

22. Big Idea
Objects remain unchanged (objects in motion stay in motion and objects at rest stay at rest) unless they experience an unbalanced net force that causes a change in motion.

23. 5 E Evaluate: 5 Question Quiz with Free Body Diagram
Elaborate: Net Force Worksheet Practice
Explain: Cornell Notes on Newton’s First Law
Explore: Writing in the Margins, NewsELA. Learn who Isaac Newton was.
Clean Read. Purposeful Read. Got through article.
Summarize: Write a short paragraph that explains the central idea of the article. Use at least two details from the article to support your response. (3-4 sentences)
Connect: Why do you think some of Newton’s discoveries were important for the scientific world?
Engage: Penny and Cup Activity