Requires a flashlight, mylar square, index card and blocks.
Online mixing of the Primary Colors of Light.
Does light travel in a straight line? Does it ever travel in a curve, relatively speaking?
How is bouncing a ball similar to bouncing a beam of light? Reflections on reflections.
to the image on the next slide.
What colors do you see when the circles of light overlap?
light using red, green and blue LEDs.
to get the Secondary Colors.
and baby powder
sprinkle some powder
in front of the flashlight.
Is it zigzagged or curved or straight?
Watch this video demonstration.
ask them to repeat the experiment on the last slide using the laser.
in a straight line!
you can BOUNCE light like a BALL!
a ball bounce?
Watch its path.
at a mirror.
Look for it on other walls.
Can you control where the beam goes?
off a surface is called
Find your light kit and a clean surface.
around your home:
to a block with tape
or a glue stick.
to hold up the card.
in front of the slit, like this.
a white piece of paper.
the line of white light on the white paper. Make the light BOUNCE off the mylar.
like the path of a ball?
of the mylar mirror.
coming in and bouncing out.
Uses a laser pointer. Adult required.
Students stood up during the laser test, so all eyes were safely out of range.
for high-precision, machine-controlled cutting.
Powerful lasers can be very dangerous.
They can damage your eyes and must be treated with respect.
DO NOT DO THESE EXPERIMENTS AT HOME.