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IB Physics 2 SL Topic 4
Terms in this set (16)
show the direction of energy transfer of a wave.
highlight the part of a wave that is moving together (in phase).
of a wave is the distance any point on a wave has moved from its undisturbed (mean) position.
is the maximum displacement from the mean position.
is the time taken for one complete oscillation (time for one complete wave to pass a point).
is the number of oscillations that take place per unit time.
is the shortest distance along a wave between two points that are in phase.
is the time difference or phase angle by which one wave leads or lags another.
is the speed at which wavefronts pass a stationary observer.
The average amount of energy transported by a wave in the direction of wave propagation, per unit area per unit time.
Principle of superposition
when two or more waves meet, the resultant displacement is the sum of the individual displacements.
Simple harmonic motion
periodic motion in which the restoring force/acceleration is proportional to the displacement and in the opposite direction
the oscillations are parallel to the direction of energy transfer
the oscillations are perpendicular to the direction of energy transfer.
states that for a certain angle of incidence called the Brewtser angle monochromatic light is 100% polarised on reflection. The angle between the reflected ray and refracted ray is 90° at the Brewster angle.
is light in which the electric field vector vibrates in one plane only.
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