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Electric Potential 29 May 2013 | 12:59 pm
In classical electromagnetism, the electric potential (a scalar quantity denoted by Φ, ΦE or V and also called the electric field potential or the electrostatic potential) at a point is the amount of ...
Newton's Third Law of Motion 27 May 2013 | 12:46 pm
The third law states that all forces exist in pairs: if one object A exerts a force FA on a second object B, then B simultaneously exerts a force FB on A, and the two forces are equal and opposite: FA...
Newton's Second Law of Motion 27 May 2013 | 12:43 pm
The second law states that the net force on an object is equal to the rate of change (that is, the derivative) of its linear momentum p in an inertial reference frame: The second law can also be stat...
Newton's First Law of Motion 27 May 2013 | 12:38 pm
The first law states that if the net force (the vector sum of all forces acting on an object) is zero, then the velocity of the object is constant. Velocity is a vector quantity which expresses both t...
Mass 27 May 2013 | 12:31 pm
In physics, mass refers to the quantity of matter in an object. More specifically, inertial mass is a quantitative measure of an object's resistance to acceleration. In addition to this, gravitational...
Momentum 27 May 2013 | 12:27 pm
In classical mechanics, linear momentum or translational momentum (SI unit kg m/s, or equivalently, N s) is the product of the mass and velocity of an object. For example, a heavy truck moving fast ha...
Quantum Entanglement 27 May 2013 | 12:23 pm
Quantum entanglement occurs when particles such as photons, electrons, molecules as large as buckyballs, and even small diamonds interact physically and then become separated; the type of interaction ...
Quantum Mechanics 27 May 2013 | 12:19 pm
Quantum mechanics (QM – also known as quantum physics, or quantum theory) is a branch of physics which deals with physical phenomena at microscopic scales, where the action is on the order of the Plan...
Zeeman Effect 26 May 2013 | 11:07 am
Zeeman effect is the splitting of lines into several components by the presence of a magnetic field. Where the components are unresolved, a broadened line is seen. This effect allows the measurement o...
Electric Charge 25 May 2013 | 08:25 pm
Electric charge is the physical property of matter that causes it to experience a force when close to other electrically charged matter. There are two types of electric charges, called positive and ne...