Types of Waves
Waves that do not require a medium
Electromagnetic waves
SI unit for frequency
Hertz (Hz)
The bouncing back of a wave
Reflection
Sound is produced when a body __
Vibrates
What is the number for pi
3.14 ....
Type of wave where particles vibrate perpendicular to motion
Transverse wave
Part of a Longitudinal wave that is "spread out"
Rarefaction
The bending of waves around an obstacle
Diffraction
Humans hear in this range
20 Hz - 20,000 Hz
Which science is better? Physics or Chemistry or Biology
Physics
Type of wave where particles vibrate parallel to motion
Longitudinal wave
Determines how loud a sound is
Amplitude
What occurs when two waves meet and combine
Constructive interference
Sounds below 20 Hz are called __
Infrasonic
The formula for wave speed
Wave Speed = Frequency × Wavelength (v = f × λ)
Mechanical Waves move fastest through ____
Solids
The number of vibrations per second
Frequency
What occurs when two waves meet and cancel
Destructive interference
What property of a sound wave primarily determines its pitch?
Frequency
Speed of a wave with f = 2,650 Hz and λ = 0.451 m
1195 m/s
4
Wavelength and frequency relationship
Inversely proportional
Sound cannot travel in this environment
Vacuum
Speed of sound depends on __
The medium (solid, liquid, gas) and temperature
Speed of a wave with f = 5,450 Hz and λ = 1.45 m
7903 m/s