Class
9
Friday,
9/18/2020 Warm Up: List all of the kinematics formulas that we have been using 1. v_{ave} = 2. v_{ave} = 3. v_{final} = 4. a = 5. displacement = 6. (v_{final})^{2} =

Class
8
Thursday,
9/17/2020 Warm Up: What would the graphs look like if you graphed acceleration for these events? My answers 1. A PE student runs from one end of the gym to the other and back (wall to wall) as fast as possible. 2. A basketball is dropped from high above a gym floor and bounces back up until its velocity reaches zero. 3. A skydiver steps out of a plane, begins to fall, opens a parachute, falls some more, and hits the ground. [Assume all motion is vertical.]

Class
7
Wednesday,
9/16/2020 Warm Up: Match each position vs. time graph with the correct velocity and acceleration graph.

Class
6 Tuesday,
9/15/2020 Warm Up: 1. A race car is traveling counterclockwise around a circular track. The car's speedometer stays on exactly 100mph the whole time. Describe what happens to each of the following as the car makes one revolution around the track: a) the car's speed b) the car's velocity c) the car's acceleration. 2. How would you use dimensional analysis to convert 4m/s to mph? Mathematically speaking, why does dimensional analysis work?

Class
5 Monday,
9/14/2020 Warm Up: In the physics world, an object is in "freefall" as long as gravity is the only force acting on that object. The object may freefall upward or downward. Near the Earth's surface, the acceleration of freefalling objects due to gravity is approximately 9.8m/s^{2}. Consider the case of this ball. At t = 0s, the ball is freefalling directly upward with a speed of 20m/s. Sketch graphs of the ball's position, velocity, and acceleration (vs. time) over the next 4 seconds. [For simplicity, use g =10m/s^{2} instead of g = 9.8m/s^{2}]
