If you could see the electric field coming off a proton you would notice that electric field lines are a. coming into the proton. b. going out from the proton. c. coming in one pole of the proton and going out the other. d. moving in circles around the proton like waves from a rock dropped in a big puddle of water.

magnified images possible images can be real = projected onto a screen

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.