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Wave Basics
Question | Answer |
---|---|
what is Amplitude? | rest position to the crest |
what is wavelength? | from crest to crest |
what is the frequency? | the number of complete waves passing a certain point per second . measured in hertz (Hz) 1Hz is 1 wave per second |
what are Transverse waves? | they have sideways vibrations. most waves are transverse the vibrations are perpendicular (90 degrees) to the direction of energy transfer of the wave |
what are longitudinal waves? | they have vibrations along the same line the vibrations are parallel to the direction of energy transfer of the wave |
give 4 examples of transverse waves | 1. light and all other EM waves 2. ripples on water 3. waves on strings 4. a slinky spring wiggled up and down |
give 3 examples of longitudinal waves | 1. sound waves and ultrasound 2. shock waves 3. a slinky spring when you push the end |
how do you find wave speed/velocity? | frequency x wavelength |