Introduction
Newton's laws of motion are three laws of classical mechanics that describe the relationship between the motion of an object and the forces acting on it. These laws can be paraphrased as follows:
Law 1. A body remains at rest, or in motion at a constant speed in a straight line, unless acted upon by a force.
Law 2. When a body is acted upon by a force, the time rate of change of its momentum equals the force.
Law 3. If two bodies exert forces on each other, these forces have the same magnitude but opposite directions.
The three laws of motion were first stated by Isaac Newton in his Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), first published in 1687. Newton used them to explain and investigate the motion of many physical objects and systems, which laid the foundation for Newtonian mechanics.
Task
1.Explain each of Newton’s three laws in your own words:
a. Law of Inertia
http://www.physicsclassroom.com/class/newtlaws/u2l1a.cfm
b.Law of Force and Acceleration
http://www.physicsclassroom.com/class/newtlaws/u2l3a.cfm
c.Law of Action/Reaction
http://www.physicsclassroom.com/class/newtlaws/u2l4a.cfm
2.Investigate and apply Newton’s Laws to football:
a.Watch the following videos
https://www.youtube.com/watch?v=08BFCZJDn9w https://www.youtube.com/watch?v=qu_P4lbmV_I https://www.youtube.com/watch?v=e1lzB36aHD4
3. Watch the elephant and feather
http://www.physicsclassroom.com/mmedia/newtlaws/efff.cfm
a.Tell how Newton’s 2ndLawexplains why objects of different masses fall at the same rate.
Process
1.Explain each of Newton’s three laws in your own words:
a. Law of Inertia
http://www.physicsclassroom.com/class/newtlaws/u2l1a.cfm
b.Law of Force and Acceleration
http://www.physicsclassroom.com/class/newtlaws/u2l3a.cfm
c.Law of Action/Reaction
http://www.physicsclassroom.com/class/newtlaws/u2l4a.cfm
Go to the following website and listen to each section. Fill out the "Task 1" page.
2.Investigate and apply Newton’s Laws to football:
a.Watch the following videos
https://www.youtube.com/watch?v=08BFCZJDn9w https://www.youtube.com/watch?v=qu_P4lbmV_I https://www.youtube.com/watch?v=e1lzB36aHD4
Go to the following website. Watch the following videos then fill out the "Task 2".
3. Watch the elephant and feather
http://www.physicsclassroom.com/mmedia/newtlaws/efff.cfm
a.Tell how Newton’s 2nd Law explains why objects of different masses fall at the same rate.
After watching the video of elephant and feather explain task 3 how ratios discussed in the second law.
Evaluation
| Exceeds | Meets | Approaches | |
|
Task 1
|
All three terms are accurately explained in the student’s own words with a picture that shows understanding. The comprehension sections shows understanding of the three laws. |
Some of the terms are accurately explained in the student’s own words with a picture that shows understanding. The comprehension sections shows understanding of at least two laws. |
All three terms are explained , but explaination may be lacking. Illustrations are present but not neat or not relevant. The comprehension sections shows understanding of at least one law. |
|
Task 2
|
All problems are answered with explainations that show an understanding of Newton's Laws. | At least 2 problems are answered with explainations that show an understanding of Newton's Laws | At least 1 problem are answered with explainations that show an understanding of Newton's Laws. |
|
Task 3
|
The student is able explains why objects of different masses fall at the same rate. | The students attempts to explains why objects of different masses fall at the same rate,but it is lacking detail. | The student is unable to explain the Newton's 2nd Law of Motion. |
Conclusion
After this lesson students will have a better understanding about Newton's laws of motion.
Credits
Activity adapted from:
https://www.wcpss.net › libPDF
Teacher Page
Made by:Camelle Bellen Guerrero
This Webquest was intended to give students a better understanding of Newton's laws of motion.