I need help haha, I need to get 5 brainiest to move on to the next stage, anyone help me plz! I've tried answering normal questions and no one gives it to me so ugh help.

ohk but u also thank me and mark as brainliest

they are non-matter

explanation:

they are non-matter. basically, any type of energy or any abstract concept is an example of something that does not matter. other examples include dreams, magnetism, radio, and hate

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.