AS level Physics exams

Center of mass - The point which you can consider all of an object's weight to act through Circuit symbol - A pictorial representation of an electrical component Coherent - Sources that have the same wavelength and frequency and a fixed phase difference between them are coherent Compressive force - A force which squashes something Constructive interface - When two waves interfere to make a wave with a larger displacement Coulomb - A unit of charge. One coulomb is the amount of charge that passes in one second when the current is one ampere Couple - A pair of forces of equal size which act parallel to each other but in opposite directions Critical angle - The angle of incidence at which the angle of refraction in 90 degrees Current - The rate of flow of charge in a circuit, measures in amperes Continuous data - Data that can have any value on a scale Density - The mass per unit volume of a material or object Dependent variable - The carriable that you measure in an experiment Destructive interference - When two waves interfere to make a wave with a reduced displacement Diffraction - When waves spread out as they pass through a narrow gap or go round obstacles Diffraction grating - A