1. livestream

2. Gravitation Notes

3. reviewed air resistance derivation

4. worked M problems dealing with velocity dependent forces...problems and solutions here

5. reviewed concepts of gravitation to date: gravitational force, gravitational potential energy (local and universal)

6. all the physics for satellite motion with uniform circular motion

7. showed Youtube clip of Cavendish experiment

8. Today's Recording

1. livestream

2. Gravitation Notes

3. review gravitational force w/ this video (embedded clicker questions) (start at 28:12 and go to end)

4. watched video on gravitation, Kepler's Laws with embedded clicker questions

5. played with Phet simulation for solar systems

6. watched video on escape velocity and other gravitational topics (with embedded clicker questions)

7. added some of the video concepts to our notes

8. Today's Recording

1. livestream

2. Gravitation Notes

3. watched video on escape velocity and other gravitational topics (with embedded clicker questions)

4. reviewed some gravitational concepts via this link:

5. video lecture 14 (start through 13:30) with the following topics:

6. Escape Velocity -- The escape velocity is the minimum speed required to escape the gravitational pull. You can calculate it using the conservation of mechanical energy. 00:00

7. Circular Orbits -- The gravitational force provides the centripetal acceleration required for orbiting satellites. If you know the radius of a circular orbit of a satellite around the Earth, you can calculate the orbital speed and the orbital period. Examples are worked for both the shuttle and the moon around the Earth, and for the Earth around the sun. The orbital period is independent of the mass of the orbiting object.

8. viewed first part of this link:

9. video lecture 22 (with WL) discussing the following topics (start through 24:14):

A review of equations for the period, velocity and mechanical energy of a circular orbit is given. Kepler's 3 Laws, and the planetary data that led him to his third law are introduced. The equations for elliptical orbits are discussed and compared with the equations for circular orbits. An example is worked in which all physical characteristics are determined given the initial conditions.

10. discussed notes of elliptical orbits

11. added some of the video concepts to our notes including escape velocity and energy associated with circular orbits

12. Today's Recording

1. livestream

2. Gravitation Notes

3. video lecture 22 (with WL) discussing the following topics (start through 24:14):

A review of equations for the period, velocity and mechanical energy of a circular orbit is given. Kepler's 3 Laws, and the planetary data that led him to his third law are introduced. The equations for elliptical orbits are discussed and compared with the equations for circular orbits. An example is worked in which all physical characteristics are determined given the initial conditions.

4. discussed notes of elliptical orbits

5. discussed conservation of energy and conservation of angular momentum for orbits

6. worked more difficult Gravitation problems

7. Today's Recording

1. livestream

2. Gravitation Notes

3. worked more difficult Gravitation problems

4. students worked on Mastering assignments

5. Today's Recording

1. livestream

2. Gravitation Notes

3. discussed solutions to FR questions from M5

4. students made predictions of graphs of F,a,v, and x (all vs. t) for a mass oscillating without friction attached to a spring (all on a horizontal surface) after viewing this video of a mass oscillating on a horizontal spring ... the worksheet is here ... in addition, students determined what graphs of K, Uel, and Etot look like (not on worksheet but in notes)

5. students worked on M problems for gravity

6. students worked on Mastering assignments

7. Today's Recording