Getting Started with First grade Physics
Sound is a fascinating form of energy. As you sit there reading this, there is energy flowing all around you in the form of light waves, sound waves, radio waves, heat and more. You are constantly being bombarded by energy.
Energy is everywhere, all the time.Moving by waves at amazing speeds, sound energy brings you knowledge about the world around you. Does a tree make a sound if it falls without anyone there to hear it? This section will answer that question and many others.
Sound is a form of energy. Energy is the ability to move something over a distance against a force. But what does that mean?
Molecules are vibrating back and forth at fairly high rates of speed, creating waves. Energy moves from place to place by waves. Sound energy moves by longitudinal waves (the waves that are like a slinky). The molecules vibrate back and forth, crashing into the molecules next to them, causing them to vibrate, and so on and so forth. All sounds come from vibrations.