Flashcards
waves
Cards in this deck (28)
- 1are oscillating motions around a fixed position.vibrations
- 2defined as that portion of the wave between two successive crests, or between two troughswave cycle
- 3measure of how much energy the wave is carrying distance between the midline of a wave and its crest or trough isamplitude
- 41/period=frequency
- 5is the time it takes a wave to complete one cycleperiod
- 6number of cycles that are completed in a certain amount of timefrequency
- 7wavelenth(lambda)Xfrequency=v(speed)
- 8Which wave parameter measures the time it takes to complete one cycle?period
- 9Which wave parameter measures the number of cycles that are completed in one second?frequency
- 10longitudinal waves are horizontal think slinky, bumping into each other in a line, can pass thru all matter, guitar stringp waves, sound waves
- 11transverse waves moving up and down like ocean,s waves, electromagnetic waves
- 12how do we know that the earth's outer core is fluid?P waves travel through the center, S waves do not
- 13the crests and troughs of a transverse wave are like the compressions and _ of a longitudinal waverarefactions
- 14the air surrounding the guitar is called themedium, because it's the material that carries the sound.
- 15sound travels faster insolids than in liquids, and faster in liquids than in gas.
- 16when temperature is hotter, dry air less moisture not humid, speed of soundis faster
- 17Wave speed increases with _ temperature and density.higher, lower
- 18Wave speed can be found by dividing the wavelength by theperiod
- 19Wave speed can be found by multiplying the wavelength by thefrequency
- 20All sound waves are which type of wave?longitudinal
- 21What are the two components of an EM wave?electric and magnetic
- 22Which type of electromagnetic wave is most often used in medicine for diagnostic imaginggamma rays
- 23the waves with the largest wavelengths are which type of waves?radio waves, red
- 24Mosquitoes and some snakes find their food using vision in the _ range.infared
- 25Opacity is caused by the _ of light waves.reflection
- 26Sunscreen is to visible light waves and to ultraviolet light.transparent; opaque
- 27Chlorophyll is a plant pigment that absorbs all frequencies of light except forgreen
- 28The carotenoids on a yellow bird's feathers absorb all light frequencies except foryellow
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- Flashcards on waves, created by Andrew M on 25/02/2015.
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