Wave
All waves come from these.
vibrations
Sound comes from?
A mechanical vibration
Light is an example of_______
Light is an example of an electromagnetic wave.
What is the speed of sound in air?
340m/s
What type of sound can you hear in space?
None.
Why?
White is the ______________ of ______colors
White is the combination of all colors
Double
State all the colors in order of low to high energy.
A wave is a __________ through _______ and ____
A disturbance/vibration through time and space.
Pitch changes with this quantity.
Pitch changes with this quantity. What is frequency.
Double: Define frequency
What is the most energetic and dangerous EM wave.
Gamma
Double: Where do gamma rays come from?
What is the speed of light and other E-M waves
3x108m/s
What is the doppler effect?
Change in frequency due to motion.
Black is the ___________ of _______ colors,
Black is the absence of all colors
Waves carry ____________
Energy
Sound is a __________ wave that requires a _______
Sound is a mechanical wave that requires a medium.
List the EM wave spectrum from low frequency to high.
List the EM wave spectrum from low frequency to high.
Radio, micro, infrared, visible light, UV, xray, gamma
What is λ, how is it pronounced, and what does it stand for?
λ is pronounced lamda, and it stand for wave length.
What does it mean to break the sound barrier?
to go faster than the speed of sound.
We see light off of objects by the process of ______
reflection
Waves that vibrate parrallel to their motion are----
and waves that vibrate perpendicular to their motion are______
Longitudinal
Transverse
If you cut the length of an A sting in half the new note will be _______
If you cut the length of an A sting in half the note will be A2 or an actave above.
List the EM wave spectrum from SHORT TO LONG WAVELNGTH.
Gamma, xray, UV, visible light, infrared, microwave, radio waves.
What does f stand for and what is it measured in.
f stands for frequency and is measured in Hz.
double what is 1 Hz?
What is a sonic boom
A sound pressure wave where you are hit by every wave front at the same time.
In order for us to see a red color shirt the shirt must have pigments that ____________ all the other colors.
In order for us to see a red color shirt the shirt must have pigments that absorb/subtract all the other colors.
Waves that require a mdeium are called
and waves that do not require a medium are called
Waves that require a medium are called mechanical.
and waves that do not require a medium are called electromagnetic.
A longer wave length will have a ______ frequency
A longer wave length will have a shorter frequency.
What causes a light wave?
Electrons moving.
What is the period of 2Hz?
1/2 second.
Why do super sonic planes have a needle in front and swept back wings.
Super sonic planes have a needle in front and swept back wings because the pressure wave could cause them to crash
Explain what infrared and ultra violet mean
Infrared means below red.
Ultra violet means above violet