1
Q
Plane polarised
A
A transverse wave whose oscillations are confined to just one plane
2
Q
Polarity
A
An electrical component with polarity has a positive and negative terminal, or pole, so the way it is connected to the circuit is important
3
Q
Medium
A
A material through which a wave passes
4
Q
Path difference
A
The difference in the distance travelled, for example by 2 waves, in which case it is often expressed as a fraction of the wavelength
5
Q
Phase difference
A
A measure of the difference in motion of 2 points on a wave in terms of a fraction of a cycle; usually expressed as an angle where 360 degrees is is one full cycle
6
Q
Principle of superposition
A
When similar waves meet, the total displacement is the sum of the individual displacments.
Physics
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