Chapter 6: Newton's 2nd Law
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Pace: 10 class periods
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BIG IDEAS: Forces and Acceleration
The change of speed and/or direction (acceleration) of an object is proportional to the net force and inversely proportional to the mass of the object.The acceleration and net force are always in the same direction. |
Standards Covered:
3.1A Identify the force(s) acting between objects in "direct contact" or at a distance 3.1d Identify the basic forces in everyday interactions 3.2C Calculate the net force acting on an object 3.4A Predict the change in motion of an object acted on by several forces 3.4C Solve Problems involving force, mass, and acceleration in linear motion. |
6 Pretest and DifferentiationIf you score a 90% or above on this pretest on your first attempt you will not need to complete any of the practice for this unit and an accelerated assignment will be provided. The pretest is not open internet or buddy or book. This pretest will be timed and may only be completed in class.
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Chapter 6 PDF Textbook and Notes
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6.1 Force Causes Acceleration
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Big Idea: Unbalanced forces acting on an object cause the object to accelerate.
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Standards:
3.1A 3.1d |
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BOOK NOTES:
1. Use the key terms and your text to complete Cornell Notes for this section. Include diagrams and examples as much as possible. |
Terms to Know:
-Force -Acceleration -symbol for "is directly proportional to." |
VIDEO REFLECTION
2. Review the Force and Acceleration video and complete a 3-5 sentence video reflection WITH at least ONE diagram describing the main idea.
2. Review the Force and Acceleration video and complete a 3-5 sentence video reflection WITH at least ONE diagram describing the main idea.
6.2 Mass Resists Acceleration
29 October
pg87
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Big Idea: For a constant force, an increase in the mass will result in a decrease in the acceleration.
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Standards:
3.1A 3.1d |
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BOOK NOTES:
1. Use the key terms and your text to complete Cornell Notes for this section. Include diagrams and examples as much as possible. |
Terms to Know:
-Mass -Acceleration -Inversely |
VIDEO REFLECTION
2. Review the Force and Acceleration video and complete a 3-5 sentence video reflection WITH at least ONE diagram describing the main idea.
2. Review the Force and Acceleration video and complete a 3-5 sentence video reflection WITH at least ONE diagram describing the main idea.
6.1-6.2 Assessment:
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6.3 Newton's 2nd Law
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Big Idea: Newton's 2nd law states that acceleration produced by a net force on an object is directly proportional to the magnitude of the net force, is in the same direction as the net force, and is inversely proportional to the mass of an object.
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Standards:
3.2C 3.4C |
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BOOK NOTES: 1. Use the key terms and your text to complete Cornell Notes for this section. Include diagrams and examples as much as possible. |
Terms to know:
Balanced Force Unbalanced Force Acceleration Net Force Inversely Newton Mass Acceleration formula: a=F/m |
VIDEO REFLECTION
2. Complete Cornell Notes in your notebook for 6.3 using the online learning module from Education Portal, Newton's Second Law of Motion (expires 27 Nov). Complete the quiz and record in your notebook.
PRACTICE
3. Complete the practice and review with teacher for a grade before taking the mastery check.
3. Complete the practice and review with teacher for a grade before taking the mastery check.
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6.Lab
31 October-3 November
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Big Idea: Apply your practice.
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Standards:
3.2C 3.4C |
6.LAB:
Apply what you know about Acceleration, Mass and Force to solve a problem you create. Record all steps in your lab notebook and work with your table partner in groups of no more than 2.
Find the Acceleration.
1. Find the initial speed of your object (s=d/t). Most might be 0 m/s.
2. Find the final speed of your object. (s=d/t)
3. Find the time it takes your object to travel a set distance.
4. Use the acceleration formula to find acceleration.
(a=final velocity-initial velocity/time)
Find the Mass.
1. Use a triple beam balance to find the mass of objects up to 1kg.
Find the Force.
1. Find the Force(F) in Newtons (N). (F=ma)
Change Something
1. Repeat your process a minimum of three times for each object.
2. Test at least 3 objects.
Reflect
1. Explain the relationship between Force, Mass and Acceleration with examples.
Apply what you know about Acceleration, Mass and Force to solve a problem you create. Record all steps in your lab notebook and work with your table partner in groups of no more than 2.
Find the Acceleration.
1. Find the initial speed of your object (s=d/t). Most might be 0 m/s.
2. Find the final speed of your object. (s=d/t)
3. Find the time it takes your object to travel a set distance.
4. Use the acceleration formula to find acceleration.
(a=final velocity-initial velocity/time)
Find the Mass.
1. Use a triple beam balance to find the mass of objects up to 1kg.
Find the Force.
1. Find the Force(F) in Newtons (N). (F=ma)
Change Something
1. Repeat your process a minimum of three times for each object.
2. Test at least 3 objects.
Reflect
1. Explain the relationship between Force, Mass and Acceleration with examples.
6.4 Friction
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Big Idea: The force of friction between 2 objects depends on the kind of material in contact and how the surfaces are pressed together.
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3.4A
3.4C |
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BOOK NOTES:
1. Use the key terms and your text to complete Cornell Notes for this section. Include diagrams and examples as much as possible. |
Terms to Know:
-Friction -Fluids -Air Resistance -Free-Body Diagram |
PRACTICE
2. The following practice pages will be available in class. Complete and check with your teacher for assessment.
2. The following practice pages will be available in class. Complete and check with your teacher for assessment.
| cpcd0605.pdf |
REFLECTION
3. Create an example of the big idea for this section. Be sure to include examples from your notes and practice that support your example.
EXTRA CREDIT
Complete cpps0402.pdf below using the instructions on the front by 10 Nov.
3. Create an example of the big idea for this section. Be sure to include examples from your notes and practice that support your example.
EXTRA CREDIT
Complete cpps0402.pdf below using the instructions on the front by 10 Nov.
| cpps0402.pdf |
6.5 Applying Pressure
pg 91-92
5-6 Nov
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Big Idea: For a constant force, an increase in the area of contact will result in a decrease in the pressure.
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3.4A
3.4C |
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BOOK NOTES:
1. Use the key terms and your text to complete Cornell Notes for this section. Include diagrams and examples as much as possible. |
Terms to Know:
-Pressure -Pascals (Pa) -Perpendicular Pressure Formula P=F/A |
VIDEO NOTES
2. Complete Cornell Notes in your notebook for 6.5 using the online learning module: Determining the Individual Forces Acting Upon an Object from Education Portal. (expires 3 Dec)
EXTRA CREDIT
3. The following practice pages will be available in class. Complete and check with your teacher for assessment.
2. Complete Cornell Notes in your notebook for 6.5 using the online learning module: Determining the Individual Forces Acting Upon an Object from Education Portal. (expires 3 Dec)
EXTRA CREDIT
3. The following practice pages will be available in class. Complete and check with your teacher for assessment.
| cpps0403.pdf |
6.6 Free Fall Explained
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Big Idea: All freely falling objects fall with the same acceleration because the net force on an object is only its weight, and the ratio of weight to mass is the same for all objects.
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3.4A
3.4C |
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BOOK NOTES:
1. Use the key terms and your text to complete Cornell Notes for this section. Include diagrams and examples as much as possible. |
Terms to Know:
-Free Fall -Mass -Weight -Acceleration Formula a=F/m |
VIDEO NOTES
2. Complete Cornell Notes in your notebook for 6.6 using the online learning module: Determining the Acceleration of an Object from Education Portal. (expires 3 Dec) Start at minute 5:15.
REFLECTION
3. Create an example of the big idea for this section. Be sure to include examples from your notes and practice that support your example.
2. Complete Cornell Notes in your notebook for 6.6 using the online learning module: Determining the Acceleration of an Object from Education Portal. (expires 3 Dec) Start at minute 5:15.
REFLECTION
3. Create an example of the big idea for this section. Be sure to include examples from your notes and practice that support your example.
6.7 Falling and Air Resistance
pg 95-97
10-11 Nov
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Big Idea: The air resistance force an object experiences depends on the object's speed and area.
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3.4A
3.4C |
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BOOK NOTES:
1. Use the key terms and your text to complete Cornell Notes for this section. Include diagrams and examples as much as possible. VIDEO NOTES 2. Complete Cornell Notes in your notebook for 6.7 using the online learning module: Air Resistance and Free Fall from Education Portal. (expires 3 Dec) |
Terms to Know:
-Speed -Area -Air Resistance -Terminal Speed -Terminal Velocity -Air Resistance Force ~ speed x frontal area |
6 Test Review
12 November
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Optional Extra Credit
Complete the practice below and include in your notebook.
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