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Cards in this deck (11)
- 1WaveA disturbance that moves through space and time, carrying energy
- 2Anatomy of a waveThere are seven quantities of Waves: wavelength, trough, crest, frequency, amplitude, period and wave speed.
- 3AmplitudeThe height of a wave from its rest position (where the wave lies on the line)
- 4WavelengthThe length from the crest of one wave to the crest of the next wave
- 5FrequencyNumber of waves per second
- 6Hertz (Hz)The unit of frequency: 1 hz=one wave per second
- 7Transverse waveAt right angles to where the energy was transmitted, it is a straight wave = travels in straight lines
- 8Longitudinal waveAlong the length of an object. Travels in a wave like form.
- 9What is the difference between longitudinal and transverse waves?transverse waves travel in straight/horizontal lines whereas longitudinal travel in wave like formation
- 10How sound energy is transferred (particle model)In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields. In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels. In water waves, energy is transferred through the vibration of the water particles
- 11Explain how sound travels in solids, liquids and gasesSound waves need to travel through a medium such as a solid, liquid, or gas. The sound waves move through each of these mediums by vibrating the molecules in the matter. The molecules in solids are packed very tightly. Liquids are not packed as tightly as solids. And gases are very loosely packed. The spacing of the molecules enables sound to travel much faster through a solid than a gas. Sound travels about four times faster and farther in water than it does in air. This is why whales can communicate over huge distances in the oceans. Sound waves travel about thirteen times faster in wood than air. They also travel faster on hotter days as the molecules bump into each other more often than when it is cold.
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- Flashcards on Untitled, created by ogniadek on 30/07/2014.
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