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# 8 Physics Vocab 5

### Wave Model of Light

Wave It is a disturbance or movement that transfers energy through matter or space, without causing any permanent displacement
Energy It is the capacity to apply a force over a distance.
Force It is a push or a pull on an object.
Crest It is the highest point on a wave.
Trough It is the lowest point on a wave
Wavelength It is the distance, in metres, for one complete cycle of the wave.
Amplitude It is the height of a wave crest or depth of a trough, as measured from its rest position.
_______________ the amplitude, greater the energy transported LARGER the amplitude, greater the energy transported
_______________the amplitude, lesser the energy transported SMALLER the amplitude, lesser the energy transported
Light waves with larger amplitude will carry more energy and will be very _____________________ Light waves with smaller amplitudes will carry less energy and will be very BRIGHT
Light waves with smaller amplitudes will carry less energy and will be _________ Light waves with smaller amplitudes will carry less energy and will be DIM
________________________ is the number of repetitive motions, or oscillations , that occur in a given time FREQUENCY is the number of repetitive motions, or oscillations , that occur in a given time
Frequency is usually measured in __________ Frequency is usually measured in HERTZ (Hz).
Low Frequency- ___________wavelength Low Frequency- LARGER wavelength
High Frequency- __________ wavelength High Frequency- SMALLER wavelength
Frequency can be calculated using the following equation: frequency = cycles/seconds
Transverse wave For this type of wave matter in the medium moves perpendicular to direction of the wave.
Compression wave . For this type of wave matter in the medium moves parallel to direction of the wave
Transverse wave Ocean waves
Compression wave Sound waves
Created by: khehra