Unit 4 Forces in Two dimensions, Circular motion and Gravity

Nov. 12 - Dec. 21
Goals
Be able to add forces in two dimensions.
Understand and apply conditions for equilibrium.
Calculate the frictional force when given the coefficient of friction and vice versa.
Determine the normal force, and the parallel and perpendicular components of gravity for inclined plane problems and solve for acceleration.
State and apply equations for centripetal acceleration and force.
Distinguish between the centripetal force and the fictitious centrifugal force.
Analyze examples of circular motion in terms of Newton's three laws of motion.

State and apply Newton's universal law of gravity.

Important Activities

District Common Literacy Assignment: due 11/26

Moons of Jupiter Lab: due around 12/17

Unit Test: 12/20

Web Support:

Inclined planes tutorial :

http://www.physicsclassroom.com/Class/vectors/U3L3a.html

Moons of Jupiter simulation

http://www3.gettysburg.edu/~marschal/clea/juplab.html

Grades are available online

To check student grades click the link to the lower right.
Once on that page, you will have to select the physics class and then enter two identifying numbers for the student.
The student id number is first and it is just the student's PPS 6 digit id number.
The next is the individual password which is the birthday: MMDDYYYY. 8 digits, no dashes, slashes or spaces.
Please contact me if the numbers or links don't work.
Thanks

Unit Two - Motion in Two dimensions

Unit Goals:
1. Know that Perpendicular Vectors are Independent
2. Add vectors graphically with parallelogram and head to tail methods.
3. Use trig and pythagorean theorem to find resultant.
4. Break vedctors into perpendicular components graphically and with trig.
5. Solve motion problems in 2D.
6. Solve projectile motion problems with 3 step method.

Highlights:
First lab report - hole in one, Thursday Oct. 4. due date to be determined.
Test - Tuesday Oct, 9

Unit 1 - Mechanics in One Dimension

Goals:
1. Know and apply the definition for average velocity.
2. Know and apply the definition for average acceleration.
3. Differentiate instantaneous and average velocity.
4. Interpret graphs of position, velocity and acceleration, including through the use of slopes and the area under the graph.
5. Draw position, velocity and acceleration graphs for described motion.
6. Know the acceleration due to gravity.
7. Solve problems by using 5 basic mechanics equations.
8. Properly use sign conventions for positive and negative acclerations and velocities.
9. Describe sources of error as either random or systematic and suggest basic ways of reducing error such as controlling variables, doing multiple trials, collecting data over a wide range and using big sample sizes.

Test Date: Sept 24, Monday.
Labs: No lab reports due this unit.

Links to worksheets will be posted soon.