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Acceleration
The rate of change of velocity.
Displacement
The direct distance between an object’s starting and ending positions.
Distance
A measure of how far an object moves.
Speed
the rate of change of distance
Velocity
The rate of change of displacement.
Force
The rate of change of momentum of an object.
Momentum
The product of an object’s mass and its velocity
Density
The mass per unit volume of a material.
Pressure
The force that a surface experiences per unit area.
Power
The rate of transfer of energy.
Frequency
The number of complete oscillations of a wave per second
Wavelength
The distance between two identical positions on two adjacent waves.
Moment Of A Force
The product of a force and the perpendicular distance from the line of action of the force to the pivot
Strain
The ratio of an object’s extension to its original length.
Stress
The amount of force acting per unit area.
Young modulus
The ratio of stress to strain for a given material.
Superposition
When two waves meet at the same point in space their displacements combine and the total displacement at that point becomes the sum of the individual displacements at that point.
Phase Difference
The difference in phase between two points on a wave.
Potential Difference
The difference in electrical potential between two points in a circuit.
Electromotive Force
The energy supplied by a source per unit charge passing through the source.
Kirchoff’s First Law
The total current entering a junction is equal to the total current leaving it.
Kirchhoff's Second Law
The sum of the voltages in any closed loop must equal zero.
Note
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