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# My stacks

A disturbance that transfers energy from place to place is called a Wave
Mechanical waves are created when a source of energy causes a medium to Vibrate
The speed of a wave is it's wavelength multiplied by it's Frequency
The bending of a wave due to a change in speed is called Refraction
The bending of a wave bending around the edge of a barrier is known as Diffraction
The interaction between two waves that meet is called interference
Waves combine to make a wave with larger amplitude in a process called Constructive interference
When an incoming wave combines with a reflected wave in such a way that the combined wave appears to be standing still, the result is a standing wave
What occurs when vibrations travelling through an object match a the object's natural frequency? resonance
A wave travels through a medium because Energy passes from partical to partical
Mechanical waves are classified according to motion
Frequency is measured in units called Hertz
When a wave hits a surface through which it cannot pass and bounce back it undergoes Reflection
Waves combine to produce a smaller or zero-amplitude wave in a process called destructive interference
Why do you see lightning from a a distant storm before you hear thunder Light travels faster than sound
compression and rarefaction are characteristic of what type of wave longitudinal wave
the distance between two consecutive crest of a wave is called wavelength

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