Answer:

1. determines the maximum intensity of its field quantities.
2. usually denoted by the Greek letter lambda (λ); it is equal to the speed (v) of a wave train in a medium divided by its frequency (f): λ = v/f.
3. the number of waves that pass a fixed point in unit time
4. a wave whose oscillations are perpendicular to the direction of the wave's advance
5. waves in which the vibration of the medium is parallel ("along") to the direction the wave travels and displacement of the medium is in the same (or opposite) direction of the wave propagation.