Flashcards
Waves
Flashcards do conjunto (13)
- 1Transverse wavesoscillations (vibrations) are perpendicular to the direction of propagation
e.g. Light and other types of electromagnetic radiation, water - 2Longitudinal wavesoscillations are along the same direction as the direction of propagation
e.g. Sound waves - 3Amplitudeits maximum disturbance from its undisturbed position
- 4Wavelengthdistance between a point on one wave and the same point on the next wave
- 5Frequencynumber of waves produced by a source each second/number of waves that pass a certain point each second (Hz)
e.g. radio waves -100 MHz - 6RefractionSound waves and light waves change speed when they pass across the boundary between two substances with different densities, such as air and glass. This causes them to change direction.
- 7DiffractionWhen waves meet a gap in a barrier, they carry on through the gap. However, the waves spread out to some extent into the area beyond the gap.
- 8How to increase diffractionincrease wavelength
decrease gap size - 9ReflectionSound waves and light waves reflect from surfaces
Law of Reflection: angle of incidence = angle of reflection - 10Constructing a ray diagramimage in a plane mirror is virtual, upright and laterally inverted
- 11the greater the amplitude......the louder the sound
- 12the greater the frequency...the higher the pitch
- 13Normal range of human hearingbetween 20Hz and 20,000Hz
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- GCSE Physics (1) Core) FlashCards sobre Waves, criado por Alex C em 21-05-2016.
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- Alex C
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