![]() Q.1: A car is traveling with a velocity of 10 m/s and it has a mass of 250 Kg. You can download Basic Physics Formula Cheat Sheet by clicking on the download button below Ohms law says that the current running through some conductor material is directly proportional to the potential difference between two endpoints of the conductor.Įlectric current flowing through the conductor in amperes.įrequency is the revolutions completed per second or as the number of wave cycles. The velocity with which the body is traveling Kinetic energy is the energy that is possessed by a body due to its state of motion. The pressure is defined as the amount of force applied per unit area of the object. Weight is not anything but the force which an object experiences due to gravity. The Energy spent to do work in a unit amount of time is termed as Power. The capacity to do some work is termed as Energy. The density of material shows the denseness of it in a specific given area.Īccording to Newton’s second law of motion, the force can be expressed by the product of mass and acceleration of the body. The average speed is the average of speed of a moving body for the overall distance that it has covered.Īcceleration is defined as the rate of change in velocity to the change in time. Or repulsive (positive) comes from the signs of the charges.Some basic but very important Physics formula is given below: 1) Average Speed Formula: Overall sign indicating wherther it is attractive (negative) Inversely proportional to the square of the distance between them Square law for force on a charge in an electric field of anotherĬharge: Force is proportional to the product of the charges and Minus sign indicates it is ALWAYS attractive Square law for force on a mass in a gravitational field ofĪnother mass: Force is proportional to the product of the massesĪnd inversely proportional to the square of the distance between Transferred in a component = charge passing through it x potentialĮnergy changed into heat = potential difference x current x time X (sum of the circuit resistance and the internal resistance of Law applied to the full circuit: Electromotive force = current Law: Potential difference = current x resistance Law: combination of Boyle's Law and Charles' Law Law: pressure x volume of a gas = number of moles x molar In gravitational potential energy = mass x gravitational field ![]() they are symbolsįor current it shouldn't be possible to confuse it with lĭone = force x distance moved in the direction of that forceĮnergy = half x mass x (velocity squared) To take care when you write the equation letters. ![]() all units to be used in equations should be in their basic form (no prefixes) - EXCEPT mass - that is kg! Having a mathematical mind myself I find learning equations to be a shorthand way of learning Physics! However, I would argue that actually knowing them makes it easier for you to explain a physics principle.įor example if you KNOW that F=ma, then, in answer to, 'What comprises evedence of a force acting?', you know that a net force will make a body accelerate. The English examination boards now GIVE you equations - so you no longer get marks for recalling them. so it was worth transferring them properly to your mental 'hard A Level and AS level - UK KS 5 (Age 16 - 18)Īre all of the equations you used to need to recall for Physics examinations.Īt each stage it was assumed you remembered the ones from the previous.GCSE and 'O' Level - UK KS4 (Age 14 - 16).
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