Laws Of Physics

rest or uniform motion in a straight line unless an eternal force

Newton’s second law of motion: the rate of change of momentum of an

object is directly proportional to the force acting, and takes place

in the direction in which the force acts.

Newton’s third law of motion: To every action there is an equal but

Law of conservation of momentum: When two or more objects act on each

other, their total momentum remains constant, provided no external

. . .

Kinetic Theory of matter: all matter is made up of tiny particles

called molecules, which are constantly in motion, attract each other

strongly when close together. (pV = constant)

Combined Gas equation: for a fixed mass of gas: pV/T = constant. (V/T = constant)

Boyle’s Law: the pressure of a fixed mass of gas is inversely

proportional to its volume provided the temperature of the gas is

kept constant. across its ends provided the temperature and

other physical conditions remain constant.

Right-hand Grip Rule: thumb points to N pole / RIGHT hand around

solenoid / fingers indicate conventional current.

Young’s Experiment: l = sw/D (s = distance btw centers of parallel

slits / D = distance from slits to eyepiece scale / w = distance btw

centers of two neighboring fringes)

.

Ohm’s Law: the current flowing through a metal conductor is directly

proportional to the p. (p/T = constant)

Charles’ Law: the volume of a fixed mass of gas is directly

proportional to its absolute temperature provided the pressure of the

gas is kept constant.

Pressure Law: the pressure of a mass of gas is directly proportional

to its absolute temperature, provided the volume of the gas is kept

constant.

Further Notes:

Formulas:

Power = W/t = E/t

Pressure = F/A = rgh (r = density / h = height) for

pressure in a liquid)

Refraction: light passing into an optically more dense medium is bent

towards the normal; light passing into an optically less dense medium

is bent away from the normal. vation of energy: energy cannot be made or destroyed,

but it can be changed from one form into another.

Fleming’s LEFT Hand Rule: to find the direction of the force: Thumb =

force / First Finger = Field / seCond Finger = Current

Fleming’s RIGHT Hand Rule: to find the direction of the induced

current.

Common topics in this essay:
Laws Newtons, E/t Pressure, Youngs Experiment, Hand Rule, Charles Law, Pressure Law, Boyles Law, Ohms Law, Kinetic Theory, Faradays Law, directly proportional, mass gas, = constant, fixed mass gas, / =, fixed mass, rule direction, = distance, kept constant, gas kept, law motion, gas kept constant, passing optically dense, mass gas directly, optically dense medium,

Approximate Word count = 401
Approximate Pages = 2 (250 words per page double spaced)

Already a member? Click here