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# Chapter 1; Waves

What occurs when vibrations traveling through an object match the object’s natural frequency? Resonant Frequency
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 move
The bending of waves due to a change in speed is called refraction
The bending of waves 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
A wave travels through a medium because The wave travels particle to particle
Mechanical waves are classified according to How they move
Frequency is measured in units called hertz
When a wave hits a surface through which it CANNOT pass and bounces 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 distant storm before you hear thunder? Light travels faster than sound
Compressions and rarefactions are characteristic of what type of wave? longitudinal
The distance between two consecutive crests of a wave is called the wavelength
A wave with a frequency of 15 Hz has a wavelength of 4 meters. At what speed will this wave travel? 60 m/s
The speed of a wave is 35 m/s. If the wavelength of the wave is 5 meters, what is the frequency of the wave? 7 Hz
A wave has a frequency of 15 Hz and speed of 30 m/s. What is the wavelength of the wave? 0.5 m
Frequency = Speed/ Wavelength
Speed = Wavelength x Frequency
Wavelength = Speed/ Frequency
Created by: lolabuckner