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Waves
- Can transfer energy and information
- (without a net motion through the material)
- (without a net motion through the material)
- They involve vibrations (OSCILLATIONS)
- LONGTITUDINAL WAVES
- OSCILLATIONS are PARALLEL to direction of ENERGY TRANSFER
- OSCILLATIONS are PARALLEL to direction of ENERGY TRANSFER
- TRANSVERSE WAVES
- The medium OSCILLATES up and down but wave pattern is horizontal
- Energy travels horizontally but the water stays where it is
- Energy travels horizontally but the water stays where it is
- EXAMPLE: A WATER WAVE.
- The medium OSCILLATES up and down but wave pattern is horizontal
- WAVELENGTH
- It is the length of one complete wave
- FREQUENCY (F) is number of waves in one second
- Measured in HERTZ (Hz)
- 50 Hz = 50 vibrations in 1 second
- 50 Hz = 50 vibrations in 1 second
- Measured in HERTZ (Hz)
- Distance between two peaks or troughs measured in LAMBDA
- It is the length of one complete wave
- WAVE SPEED
- The speed at which energy is transfered along the wave
- Measured in meters per second
- The speed at which energy is transfered along the wave
Medienanhänge
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