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First Law of Motion

This document is a lesson review on Newton's first law of motion. It contains true/false statements about inertia and balanced forces that students must mark as true or false by correcting any underlined false terms. There is also a skill challenge experiment describing an uncooked egg being spun on a desk and its results are to be explained in terms of inertia. The conclusion provided is that because of inertia, the liquid inside the egg continued spinning when the egg was stopped briefly, causing the egg to resume spinning when released due to the moving liquid inside.

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Charlie Williamson
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115 views2 pages

First Law of Motion

This document is a lesson review on Newton's first law of motion. It contains true/false statements about inertia and balanced forces that students must mark as true or false by correcting any underlined false terms. There is also a skill challenge experiment describing an uncooked egg being spun on a desk and its results are to be explained in terms of inertia. The conclusion provided is that because of inertia, the liquid inside the egg continued spinning when the egg was stopped briefly, causing the egg to resume spinning when released due to the moving liquid inside.

Uploaded by

Charlie Williamson
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Name Class Date

What is Newton’s first law of motion?


Lesson Review
Write true if the statement is true. If the statement is false, change the underlined
term to make the statement true. Write your answers in the spaces provided.

____________________ 1. Inertia is the tendency of an object to stay at rest or in motion.

____________________ 2. Balanced forces are needed to move a pencil across a desk.

____________________ 3. A chair will move by itself because of its inertia.

____________________ 4. Newton’s first law of motion explains how inertia affects moving objects.

____________________ 5. In a car accident, a passenger not wearing a seat belt may crash through a
windshield because of his or her inertia.

____________________ 6. A balanced force does not change the velocity of an object.

____________________ 7. An object will remain at rest unless a balanced force acts upon it.

____________________ 8. In baseball, inertia makes it easy for a baseball player to make sharp turns at
the bases.

Skill Challenge
Skills: experimenting, analyzing
Read the following description of an experiment. In the space provided, write a
conclusion explaining the results of this experiment in terms of inertia.
Shannon placed an uncooked egg on her desk. She gave the egg a gentle turn to start it
spinning. She then stopped the egg from spinning for a moment, and quickly released it.
When she released the egg, the egg began to spin again.

Conclusion: ___________________________________________________________________________________

_______________________________________________________________________________________________

_______________________________________________________________________________________________

_______________________________________________________________________________________________

_______________________________________________________________________________________________

_______________________________________________________________________________________________

_______________________________________________________________________________________________

Concepts and Challenges in Physical Science, Teacher’s Resources CD-ROM


(c) by Pearson Education, Inc./Globe Fearon/Pearson Learning Group. All rights reserved. Motion
Answer Key
What is Newton's first law of motion?
Lesson Review
1. true 2. Unbalanced 3. will not 4. true 5. true
6. true 7. an unbalanced 8. difficult

Skill Challenge
Because of inertia, the liquid inside the uncooked
egg continued to spin when the egg was stopped for
a moment. The moving liquid caused the egg to start
spinning again when it was released.

Concepts and Challenges in Physical Science, Teacher’s Resources CD-ROM


(c) by Pearson Education, Inc./Globe Fearon/Pearson Learning Group. All rights reserved. Motion

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