Unit IV- Net Force
Week One - Elevator stuff - 1/21-1/24
- Tuesday - Discuss the lab and how to discuss forces acting on individual systems
- Homework question- A 7.50 kg cart sits on a flat track with no friction and is connected to a 2.50 kg block that is suspended over a ledge on a frictionless/massless pulley. What is the tension in the string?
- ANSWER: 18.375 Newtons
- Summary and place to check your answers
- Homework question- A 7.50 kg cart sits on a flat track with no friction and is connected to a 2.50 kg block that is suspended over a ledge on a frictionless/massless pulley. What is the tension in the string?
Simulation with interactive velocity and force graphs
- Wednesday- Quiz on systems
- Thursday- Time to work on finishing the elevator lab packet
- Time to work on Worksheet 1- Force Diagrams
Week 2 - February 3rd - 7th
- Monday - Workday on cardboard boats
- Tuesday- Go over Worksheet 1- Force Diagrams - Physics of elevator motion
- Wednesday- Special Schedule - Conceptual understanding of newton's second law
- Wednesday- Go over Worksheet 1- Force Diagrams - Physics of elevator motion
- 1 8:50 - 9:16 (26)
- 2 9:20 - 9:46 (26)
- 3 9:50 - 10:16 (26)
- 5 10:20 - 10:46 (26)
- 6 10:50 - 11:16 (26)
- 4 Early Lunch 11:16 - 11:50 (34)
- Class 11:50 - 12:14 (24)
- Class 11:20- 11:44 (24)
- Late Lunch 11:44 - 12:18 (34)
- 7 12:18 - 12:44 (26)
- Thursday-Go over Worksheet 1- Force Diagrams - Physics of elevator motion
- Friday- Launching of the cardboard boats
Week 3 - February 10th- 14th
- Monday-Worksheet 2- Newton's Second Law - Applications of Newton's Second Law
- Tuesday-Example of combining Force Diagrams, Kinematics, and Newton's Second Law
- Wednesday- Worksheet 3- Kinematics and Unbalanced Forces
- Thursday - Worksheet 4- Components
- Friday- No School
Week 4 - February 18th- 21
- Tuesday- Start Lab
- How does a changing normal force affect a force of friction - Line Graph for both static and kinetic friction
- Wednesday- Work on lab packet
- Thursday- Work on lab packet due at the end of class
- Friday - Practice working with coefficients of static and kinetic friction
Week 5 - February 24- 28th
- Monday - Whiteboard Worksheet 5- Coefficient of Friction
- Tuesday- Quiz on Forces of friction
- Wednesday- Review worksheet
- Thursday - Test on Newton's Second Law
- Friday- Start Projectile Motion- Falling objects
Monday February 3rd, 2020
- Friday- Whiteboard Worksheet 1- Force Diagrams
Unbalanced Forces
https://www.mansfieldct.org/Schools/MMS/staff/hand/lawsunbalancedforce.htm
https://www.youtube.com/watch?v=icYHdR_AvMA
Example problems
http://www.physicsclassroom.com/class/newtlaws/Lesson-2/Determining-the-Net-Force
http://www.beaconlearningcenter.com/documents/2424_01.pdf
SIMULATORS
Forces and motion
https://phet.colorado.edu/en/simulation/forces-and-motion-basics
Second forces and motion
https://phet.colorado.edu/en/simulation/legacy/forces-and-motion
Ramp Forces
https://phet.colorado.edu/en/simulation/legacy/ramp-forces-and-motion
Force of Friction
Video on friction
http://study.com/academy/lesson/what-is-friction-definition-formula-forces.html
The Physics classroom
http://www.physicsclassroom.com/class/newtlaws/Lesson-2/Types-of-Forces
EXAMPLES
http://physics.info/friction/practice.shtml
Worksheets: