PRESENTATION OUTLINE
WHAT IS A WAVE?
A wave is A periodic disturbance in a solid, liquid, or gas as energy is transmitted through a medium
WHAT ARE THE TWO TYPES OF WAVES?
1. Transverse Waves
Examples: light,"the wave", the wave in a rope
2. Longitudinal Waves
Examples: spring,sound
REFLECTION
Reflection is the bouncing back of a ray of light, sound, or heat when the Ray hits a surface that it does not go through
RAREFACTION
A decrease in density and pressure in a medium, such as air, caused by the passage of a sound wave
DIFFRACTION
Diffraction is a change in the direction of a wave when the wave finds an obstacle or an edge, such as an opening
HOW DO WE CALCULATE THE VELOCITY OF A WAVE?
Velocity= frequency times wavelength
DESCRIBE CONSTRUCTIVE AND DESTRUCTIVE INTERFERENCE
Constructive interference - Any interference in which waves combine so that the resulting wave is bigger than the original waves
Destructive interference - Any interference in which waves combine so that the resulting wave is smaller than the large rest of the original waves
ONE INTERESTING THING ABOUT WAVES FROM THIS CHAPTER
Interference of light waves creates colorful displays.