Vocab 1
Light
A form of kinetic energy that travels through space.
Reflect
To bounce off of
What is white light made of?
All the colors of the rainbow.
What happens to the molecules when a sound wave travels across a room?
The molecules vibrate, bump into each other, and make other molecules vibrate.
Opaque
A material that blocks all light.
Vibrate
To move back and forth quickly
What direction does light travel?
In a straight line
What does sound need to travel through?
A medium (solid, liquid, gas)
Transparent
A material that light passes through completely.
Sound
Energy that is carried in waves by vibrating molecules.
Why do we see objects as certain colors?
The color we see is the color that is reflected. The other colors are absorbed.
What types of materials absorb sound?
Soft and Rough
Translucent
A material that some, but not all, light passes through.
Transmit and Absorb
Transmit- To pass through
Absorb- To take in
How does the color of an object affect how much light is absorbed?
The darker the color, the more light that is absorbed.
What types of materials reflect sound?
Smooth and Hard
Refraction
When a ray of light passes from one medium to another and changes direction.
Acoustics
The properties of a space that determine how sound waves travel.
What is the law of reflection?
The angle a light ray comes in is identical to the angle it goes out after being reflected.
Name three things that sound can do when it hits something.
It can be absorbed, reflected, or transmitted.