The number of times that a periodic function repeats itself in a specified time.
The derived SI unit of work or energy; the work done when the point of application of a force of 1 newton is displaced through a distance of 1 meter in the direction of the force.
The condition when neither state, motion, nor internal energy tends to change with time
A resistance encountered when one body moves relative to another body with which it is in contact
Symmetrical change in the direction of propagation of a wave that strikes a boundary
The rate of increase of speed or the rate of change of velocity
A quantity that has both magnitude and direction, typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity's magnitude.
A measure of the "compactness" of a substance, given as mass per volume
The tendency of a body to preserve its state of rest or uniform motion unless acted upon by an external force
The opposition to a flow of electric current through a circuit component, measured in OHMS
A physical quantity expressing the amount of matter in a body.. Scientists use kilograms to measure it.
A physical quantity that is completely described by its magnitude. Typical examples are volume, density, speed, energy, mass, and time.
Electromagnetic radiation within the electromagnetic spectrum that can be perceived by the human eye
The basic SI unit of electric current;
The time that elapses during 9,192,631,770 (9.192631770 x 10 9 ) cycles of the radiation produced by the transition between two levels of the cesium 133 atom
A unit of heat, equal to 4.1868 joules
The energy transferred to or from an object via the application of force along a displacement. It is equal to force times displacement.
The basic SI unit of thermodynamic temperature ... the Celcius temperature plus 273.15