Lesson 1
Waves in which the particles move perpendicular to the direction of wave motion
What are transverse waves?
the complete range of electromagnetic waves placed in order of increasing frequency
What is the electromagnetic spectrum?
The part of a longitudinal wave where the particles of the medium are close together
What is compression?
is a disturbance that transfers energy from place to place
What is a wave?
when a wave is bounced off of a surface
What is reflection?
the maximum distance the particles of the medium carrying a wave move away from their rest position
What is amplitude?
Permitting light to pass through, but not transparent; blurry
What is translucent?
the perception of how high or low a sound seems; depends on frequency
What is pitch?
Waves that can only travel through matter.
What are mechanical waves?
the distance between two corresponding parts of a wave. (crest-to-crest, trough-to-trough)
What is wavelength?
The change in speed and direction of a wave when it passes from one kind of material to another.
What is refraction?
Electromagnetic waves with the longest wavelengths and lowest frequencies
What are radio waves?
The higher the frequency of a sound wave, the higher the __________.
What is pitch?
The passing of a wave through matter
What is transmission?
impossible to see through; preventing the passage of light
What is opaque?
True or false:
Waves transfer matter.
What is false?
Waves transfer energy, not matter.
Electromagnetic waves with the shortest wavelengths and highest frequencies
What are gamma waves?
2 factors that can affect the speed of a sound wave
What are the type of medium and temperature?
allowing light to pass through; easily seen through or detected
What is transparent?
a part in a longitudinal wave where the particles are spread apart
What is rarefaction?
Differentiate between transverse and longitudinal waves.
Transverse waves travel perpendicular to the direction that a wave travels, but longitudinal waves travel parallel to the direction that the wave travels.
Explain why a yellow car appears yellow.
The car appears yellow because its opaque and all colors of light are absorbed except yellow. Yellow light is reflected back to your eye.
Compare and contrast light waves and sound waves.
Both types of waves transfer energy and travel through matter. However, light waves travel faster than sound waves and light waves are transverse and electromagnetic, while sound waves are longitudinal and mechanical.
Electromagnetic waves that are visible to the human eye
What is visible light?
a unit that compares the intensity, or loudness, of different sounds
What is a decibel?