Wave Properties
What wave property determines loudness?
Amplitude
Which type of wave requires a medium?
Mechanical
A wave bounces off a surface.
Reflection
Sound travels fastest through which state of matter?
Solid
Approaching source = higher or lower pitch?
Higher
What wave property determines pitch?
Frequency
Which type of wave can travel through a vacuum?
Electromagnetic
A wave bends when entering a new medium.
Refraction
Sound travels faster in air or water?
WaterWater
Moving-away source = higher or lower pitch?
Lower
Greater amplitude means ______ energy.
More
Sound is what type of wave?
Mechanical
A wave spreads after passing through an opening.
Diffraction
Sound travels slowest through which state of matter?
Gas
Approaching source = shorter or longer wavelength?
Shorter
If wavelength decreases, frequency ______.
Increases
Visible light is what type of wave?
Electromagnetic
Two waves combine to make a larger amplitude.
Constructive interference
Light travels faster in air or water?
Air
Approaching source = higher or lower frequency?
Higher
If EM wave frequency increases, energy ______.
Increases
What do both mechanical and electromagnetic waves transfer?
Energy
Two waves combine to make a smaller amplitude.
Destructive interference
For sound, which is faster: steel or water?
Steel
Moving-away source = shorter or longer wavelength?
Longer