👉Waves!! 👈
👇Learning Targets
Students can explain how waves interact when they meet and obstacle .
Students can explain what happens when two waves interfere.
Reflection - Occurs when a wave strikes and object and bounces of it.
Diffraction - The bending of waves around and obstacle; can also occur when waves pass through a narrow opening
Refraction - The bending of a wave caused by a change in its speed as it travels from one medium to another.
Interference - The process of two or more waves overlapping and combaining to form a new wave.
Constructive Interference - When the crest of two or more transverse waves arrive at the same place at the same time and overlap.
Destructive Interference- The waves subtract form each other as they overlap.
Standing Wave - When a waves equal in wavelength but opposite in direction interfere with each other
👉Constructive – makes a bigger wave then the orginal wave
👉Destructive – makes a smaller wave then the orginal wave
This Picture explains the different wave interactions and explains how constructive waves great a bigger wave and how to get the sum of the amplitudes of the wave.
Examples👇
Reflection ~ A wave light bouncing off a mirror
Refraction ~ Light travels slower through water than air for examples (Rainbows).
Diffraction ~ When you turn of the light in your room and the light still finds a way in by the windows the light curvs in .
Standing wave ~ When a waves equal in wavelength but opposite in direction & interfere with each other.
This video shows the different wave interactions and show different examples.