Parts of a Wave
The highest point of a wave.
Crest
Energy traveling through air, water, or solid matter.
Wave
The 2 types of waves
Longitudinal and Transverse
When a wave bounces and goes in a new direction.
Reflection
The ability to perceive sound (Hint: One of your 5 senses)
Hearing
The lowest point of a wave.
Trough
All sound waves begin with this
Vibrating matter
Waves that move up and down
Transverse
When a wave bends as it passes through different materials, varying temperatures, or wind speeds.
Refraction
A change in the frequency of sound waves that occurs when the source moves relative to a stationary listener. (Hint: Ambulance sirens driving past)
Doppler Effect
The size of a wave. It is measured from one crest to the next crest on a wave (or one trough to the next trough).
Wavelength
The distance that sound waves travel in a given amount of time. S___ of S____
Speed of Sound
Waves that move back and forth like a slinky
Longitudinal
When a wave bends around an object or through holes in the object.
Diffraction
What do decibels measure?
Amplitude
The number of times per second that a sound wave repeats itself. It is also known as “pitch.” It is measured in hertz (Hz).
Frequency
Objects that move faster than sound (600 mph +).
Supersonic
A type of wave that includes light, ripples in water, and a vibrating guitar string.
Transverse
When a wave is absorbed and disappears.
Absorption
What does hertz measure?
Frequency
Measurement of the amount of energy transferred by a wave. It is measured in decibels (dB)
Amplitude
Sound waves move through ____ the fastest (gas, liquid, solid)
Solid
A type of wave that includes sound, sonar, and ultrasound.
Longitudinal
Give an example of reflection (sound or light waves).
Echo, mirror
The formula for finding frequency when the period is known. F = ?
F = 1/T (T=time)