GCSE Physics (AQA) Exam Test Marking Scheme

GCSE Physics (AQA) Exam Test Marking Scheme P1 - ANSWER energy - ANSWER The ability to do work energy store - ANSWER a form of energy kinetic energy - ANSWER energy which a body possesses by virtue of being in motion gravitational potential energy - ANSWER energy an object possesses because of its position in a gravitational field thermal energy - ANSWER the internal energy present in a system due to its temperature elastic potential energy - ANSWER the energy stored in elastic materials as the result of their stretching or compressing emit - ANSWER to give off or send out absorb - ANSWER to take in conservation of energy - ANSWER The principle that energy cannot be created or destroyed closed system - ANSWER A system in which energy, but not matter, is exchanged with its surroundings. pendulum - ANSWER A hanging mass that swings back and forth when pulled to one side and let go. work - ANSWER (joules, J) Force x Distance, the exertion of force overcoming resistance or producing molecular change joules - ANSWER the SI unit of work or energy, equal to the work done by a force of one newton when its point of application moves one metre in the direction of action of the force force - ANSWER (newtons, N) A push or a pull Newtons - ANSWER the SI unit of force. It is equal to the force that would give a mass of one kilogram an acceleration of one metre per second per second kilograms - ANSWER the SI unit of mass, equivalent to the international standard kept at Sèvres near Paris mass - ANSWER (kilograms, kg) the quantity of matter which a body contains weight - ANSWER (newtons, N) the force exerted on the mass of a body by a gravitational field. metres - ANSWER (m) a measure of distance or displacement. time - ANSWER (seconds, s) the indefinite continued progress of existence and events that occur in apparently irreversible succession from the past through the present to the future. unit - ANSWER standards for measurement of physical quantities that need clear definitions to be useful precision - ANSWER refers to the closeness of two or more measurements to each other accuracy - ANSWER the degree of closeness of measurements of a quantity to that quantity's true value. friction - ANSWER the resistance that one surface or object encounters when moving over another.