Waves 1
Waves carry __________
What is energy?
This type of wave does not need matter to transfer energy.
What is an electromagnetic wave?
Change in direction of a wave as it changes speed
What is refraction?
The distance from crest to crest or trough to trough
What is wavelength?
What happens to the frequency and energy of a wave when the wavelength gets longer?
Frequency becomes lower; energy becomes lower
This type of wave vibrates matter perpendicular to how the wave is moving.
What is a transverse wave?
The entire range of EM waves, with different frequencies and wavelengths
What is the electromagnetic spectrum?
Change in direction of a wave as it travels past the edge of an object
What is diffraction?
The height of a wave from resting position
What is amplitude?
If a wave has high energy, it has ___________ amplitude.
What is high amplitude?
A type of wave that travels parallel to the motion of the wave.
What is a longitudinal wave?
Frequency of waves are measured with?
What is hertz?
Energy is pulled into an object
What is absorption?
The spread out sections of a longitudinal wave
What is a rarefaction?
A material that mechanical wave needs to travel through
What is a medium?
A wave that travels only through matter.
What are mechanical waves?
Name two ways that EM waves are grouped.
What is by wavelength, frequency, and energy level?
When waves are bounced back to an object
What is reflection?
The close together sections of a longitudinal wave
What is a compression?
Frequency determines _________ for a sound.
What is pitch?
Name three things that affect the speed of a wave.
What is temperature of medium, density of medium, wavelength, and frequency?
The angles of an incident ray and the reflected ray are the same
What is the law of reflection?
This happens when light or sound passes through an object.
What is transmission?
The number of wavelengths that pass a given point per second.
What is frequency?
The scale that is used to determine the loudness, or intensity, of sound.
What are decibels?