Physics 20 Dynamics Review

I can … Define Dynamics Define force as a vector quantity Use Newton’s First Law Use Newton’s Second Law (F=ma) Use Newton’s Third Law Use force due to gravity formula Define Weight F1 = -F2 Use Newton’s Law of Universal Gravitation Understand the principle behind the Cavendish Experiment

I also can … Explain a gravitational field and why it is vector Define a sphere of influence Calculate gravitational field strength Relate gravitational field strength to weight Calculate weight on different planets Calculate true vs. Apparent weight Define Normal force and how it relates to gravitational force Understand that there is a force of friction that resists motion Calculate the force of friction

Wow this is a lot, but I also can … Calculate forces (friction, gravity and normal) on an inclined plane (uses trig rules) Define Elastic force Calculate elastic force using distortion and the spring constant.

Assignment Pearson Physics Pg 192 -193 Pearson Physics Pg 231