Science physics waves 3
Terms in this set (45)
a disturbance that transfers energy from place to place
the ability to do work, can be transfered from one particle to another
most waves must travel through a _________________.
These are the waves that have to travel through a medium.
No, the particles in the medium substance return to the resting or equilibrium position from which theystarted.
When waves travel through a medium, do they carry the medium with them?
Waves are created when a source of energy causes a medium to ______________.
repeated back-and-forth or up-and-down motion.
transverse, longitudinal, and surface
Three types of mechnical waves
waves that move the medium at right angles in which the medium is traveling.
waves that move the particles in the medium parallel to the direction in which the waves are travelling.
Sound waves, coils, etc
combination of transverse and longitudinal waves, at the surface between two mediums.
amplitude, wavelength, frequence and speed
four basic properties of waves
maximum distance the particles of the medium carrying the wave move away from their rest positions.
lowest point of the transverse wave
highest point of the transeverse wave
resting position or equilibrium
point between the crest and the trough
when there are crowded cycles / waves within a particular length
when there are fewer cycles / waves within a space
crest / compression
The high point, or _____________ of a transverse wave is analogous or similar to the ________________ in a longitudinal wave
trough / rarefaction
The low point, or _____________ of a transverse wave is analogous or similar to the ________________ in a longitudinal wave
A longitudinal wave has a large amplitude when it has ________________ compressions and ________________ rarefactions
for a transverse wave, distance between crest to crest, or trough to trough
for a longitudinal wave, distance from one compression to the next
# of complete waves that past a given point in an amount of time. Usually # of complete waves per second (measured in Hertz)
unit of measurement for frequency
how quickly a wave travels.
units for speed
meters / second
unit for wavelength
speed = wavelength X frequency
formula for speed, based on wavelength times frequency.
this is when two or more waves meet and have an effect on each other
when two waves combine to make a wave with a larger amplitude.
when two waves combine and produce a smaller amplitude
The crests and troughs of a wave are the points of ______________ energy.
your voice box, consisting of two folds of tissue called vocal cords.
when air rushes pass your vocal chords they __________________ and move together, and the air between them is compressed. When they move apart from each other, rarefaction occurs. The air carries these longitudinal waves to other people's ears (as well as your own.)
Electromagnetic waves are created when an electric current is surrounded by a ______________ _________________.
these are waves (not mechanical) that travel as vibrations in electric and magnetic fields.
energy that is transverred by electromagnetic waves.
Electromagnetic waves do not need a _______________ through which to travel. They can travel through a vaccum.
(3 X 10-to-the-eighth power)
the speed of light
time it takes for light to travel from sun to earth.
Light has properties of _____________, but also acts sometimes like a stream of _______________ (can travel through a vaccum).
True or false: different electromagnetic waves have different wavelengths and frequencies.
True or false: different electromagnetic waves have different speeds.
radio waves, tv waves, cell phones, and pagers all work based on what kind of waves?
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