1. Miscellaneous Mechanics
Orbital velocity, Escape Velocity, Gravitational Potential, Oscillations, Periods of Spring and Pendula

2. Energy and Gravity
To get into orbit and object has to be launched _____ enough.
The speed needed to achieve orbit is called __________ velocity.
The speed needed to outright break free of a planets gravity (a.k.a. “to leave orbit) is called ____________.
You should be able to create formulas for these velocities using Physics formulas we have already learned…..

3. If an object is in orbit, the centripetal force is simply provided by the object’s…..

4. If an object breaks orbit, it’s kinetic energy has just exceeded its gravitational potential.
PE g = U = Work done against gravity = Fg x d.

5. Oscillations
Are motions that repeat themselves over and over on their own.
Examples
The time for the oscillation to get back to it’s starting point is called the “period” of the oscillation. It is measured in …..
The number of times it oscillates per second is called the “frequency” of the oscillation. It is measured in …..

6. Period Practice
Find the period of a 200 gm pendulum bob attached to a string whose length is… a) 1 meter long b) 2 meters long
Find the period of a 2 kg mass attached to a spring of spring constant 20 N/m and stretched 10 cm.