N5 Physics Revision EXAM QUESTIONS AND ANSWERS 100% SOLVED (Newest 2025) Describe a transverse wave - Correct Answers ✅The wave moves perpendicular to the direction of the energy wave.Describe a longitudinal wave - Correct Answers ✅The wave moves in the same direction as the energy wave What is the frequency of a wave? - Correct Answers ✅The number of waves produced per second What is the frequency of a wave measured in? - Correct Answers ✅Hertz (Hz) What is meant by the period of a wave? - Correct Answers ✅The period is the time taken for one complete wave to pass a fixed point What is the relationship between the period and the frequency? - Correct Answers ✅1 = Period x Frequency What is diffraction? - Correct Answers ✅The bending of waves around obstacles What diffracts better, low frequency or high frequency waves? - Correct Answers ✅Low frequency 1 / 2
N5 Physics Revision EXAM QUESTIONS AND ANSWERS 100% SOLVED (Newest 2025) When does refraction of light occur? - Correct Answers ✅When light travels from one material to another.Give two advantages of optical fibres over copper wires - Correct Answers ✅-Lighter -Cheaper -Carry more signals simultaneously -Better signal quality Give two advantages of copper wires over optical fibres - Correct Answers ✅-Faster signal speed -Easier to join together At what speed do microwaves travel through air. - Correct Answers ✅3x10⁸ms⁻¹ What makes up an alpha particle? - Correct Answers ✅two neutrons and two protons - Helium nucleus What is required to absorb a beta particle? - Correct Answers ✅A few cm of aluminium
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