2265425
Description
Mind Map by George Coote, updated more than 1 year ago
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Created by George Coote
over 9 years ago
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Physics Waves
- Light Spectrum
- Gamma Rays
- X-Rays
- Ultraviolet
- Johan Ritter, 1801
- Johan Ritter, 1801
- Visible Spectrum
- Microwaves
- Radio
- Infrared
- Frederick Herschel, 1800
- Frederick Herschel, 1800
- Gamma Rays
- Properties
- Waves carry information and energy
- Waves do not need a medium to travel through
- Transverse waves oscillate at right angle to the direction of travel
- Longitudinal waves oscillate in a single direction
- Waves carry information and energy
- Amplitude, wavelengths and frequency
- Amplitude: Height of wave
- Wavelength: Length of wave
- Frequency: Number of times the wave passes the same points (in Hz)
- Amplitude: Height of wave
- Wave speed = v = f × λ
- v = Wave speed in metres per second
- f = Frequency in hertz
- λ = Wave length in meters
- v = Wave speed in metres per second
- Refraction and defraction
- Refraction:When waves pass across a boundary with materials with varying densities
- Change in direction
- Change in direction
- Diffraction
- When waves spread out when they "jump" a gap.
- When waves spread out when they "jump" a gap.
- Refraction:When waves pass across a boundary with materials with varying densities
- Seismic Waves
- P-waves: Longitudinal, faster
- S-waves: Transverse
- Cause earthquakes
- S-waves can only travel through solids, whereas P-waves can move through solids and liquids
- Location of an earthquake can be calculated by calculating the difference between P and S-waves
- P-waves: Longitudinal, faster
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