Telecommunications 3.0 / 5 based on 1 rating ? PhysicsNational 5SQA Created by: Abby DannCreated on: 17-05-13 18:17 What is telecommunication? When information is transmitted and received over a far distance. 1 of 9 What is the wavelength of a wave? The distance until a wave repeats itself. 2 of 9 What is the amplitude of a wave? The height from rest position. 3 of 9 What is the frequency of a wave? The number of waves in unit time. 4 of 9 What is a period of a wave? The time for one wave to pass. 5 of 9 What can electrical signals in an electrical cable be examined by? Cathode Ray Oscilloscope / CRO / Oscilloscope 6 of 9 If the amplitude increases, what has changed? The volume. 7 of 9 If the frequency increases, what has changed? The pitch. 8 of 9 What is the Law of Reflection? The angle of incidence is equal to the angle of reflection. 9 of 9
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