Light Energy Light energy is the vibration of electrically charged particles These particles are called photons and have no mass Light vibrations cause energy to be transmitted in a wave but unlike sound it does not cause other particles to vibrate

Possibilities of Light Light rays move away from their source in straight lines When they hit something they do one of three things https://www.youtube.com/watch?v=fD1544bM_c4&nohtml5=False Reflected (bounced off) Refracted (bent) Absorbed (stopped) VIDEO

TRY IT! 4. What happened? 5. What causes this? Part I Part II Prop up the card with the arrow on it. Place a glass of water a little to one side of the card and a few inches in front of it. Now stoop down until your eyes are level with arrow. Slide the glass between the card and your eyes. Try sliding it back and forth a few times. 4. What happened? 5. What causes this? Part I Fill beaker half full of water. Put a pencil in the glass. Look at the pencil through the side of the glass. 1. How does the pencil look different than it did before you put it in the water? 2. This is an example of ______________. 3. Sketch it!