-, electrical, or other forms. According to the law of conservation of energy, the total energy of a system remains constant, though energy may transform into another form. The SI unit of energy is the joule (J) or newton-meter (N * m).

The kinetic energy of an object is the energy which it possesses due to its motion.[1] It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.pendulum is defined as a mass, or bob, connected to a rod or rope, that experiences simple harmonic motion as it swings back and forth without friction. The equilibrium position of the pendulum is the position when the mass is hanging directly downward.

Definition: Oscillation is a motion that repeats itself in a regular cycle, such as a sine wave or pendulum.Also Known As: periodic motionefinition: Mass is the quantity of inertia possessed by an object or the proportion between force and acceleration referred to in Newton's Second Law of Motion. This is not a very good operational definition of mass, of course. In most common instances, mass is determined by weighing the object and using the force of gravity Answer: A material's density is defined as its mass per unit volume. It is, essentially, a measuremement of how tightly matter is crammed together. The principle of density was discovered by the Greek scientist Archimedes. To calculate the density (usually represented by the Greek letter "rho") of an object, take the mass (m) and divide by the volume (v): rho = m / vto calculate the value automatically - which is why you can get on a scale and have read your mass. The SI unit of mass is the kilogram (kg). magnetic flux (Physics / General Physics) a measure of the strength of a magnetic field over a given area perpendicular to it, equal to the product of the area and the magnetic flux density through it. Symbol The magnetic field B is defined from the Lorentz Force Law, and specifically from the magnetic force on a moving charge: Electric field is defined as the electric force per unit charge. The direction of the field is taken to be the direction of the force it would exert on a positive test charge. The electric field is radially outward from a positive charge and radially in toward a negative point charge. Electric current is the rate of charge flow past a given point in an electric circuit, measured in Coulombs/second which is named Amperes.

magnetic lines of force----Curved lines used to represent a magnetic field, drawn such that the number of lines is related to the strength of the magnetic field at a given point and the tangent of any curve at a particular point is along the direction of magnetic force at that point.

A 'unit' is exactly equivalent to one kilowatt hour, and is used in Britain as the unit of measurement for purchasing electrical energy.The horsepower (hp) is a unit in the foot-pound-second ( fps ) or English system, sometimes used to express the rate at which mechanical energy is expended. It was originally defined as 550 foot-pounds per second (ft-lb/s).A power level of 1 hp is approximately equivalent to 746 watt s (W) or 0.746 kilowatt s (kW).