What do these arrows indicate on this paper?

the direction the plates are moving

Explanation:

the arrows moving away from each other show the directions the played are moving, forming a divergent boundary. the arrows moving toward each other are showing that the plates are moving toward each other, creating a convergent boundary that is subducting

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.