Vectors have magnitude and direction, scalars only have magnitude. The fact that magnitude occurs for both scalars andvectors can lead to some confusion. There are some quantities, like speed, which have very special definitions
Showing posts with label Physics Definitions. Show all posts
Showing posts with label Physics Definitions. Show all posts
Friday, 12 February 2016
Vectors have magnitude and direction, scalars only have magnitude. The fact that magnitude occurs for both scalars andvectors can lead to some confusion. There are some quantities, like speed, which have very special definitions
Tuesday, 9 February 2016
In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.
In physics, power is the rate of doing work. It is equivalent to an amount of energy consumed per unit time. In the SI system, the unit of power is the joule per second (J/s), known as the watt in honour of James Watt, the eighteenth-century developer of the steam engine. It is a scalar quantity.
In physics, energy is a property of objects which can be transferred to other objects or converted into different forms, but cannot be created or destroyed.
Monday, 8 February 2016
Volume is the quantity of three-dimensional space enclosed by
The density, or more precisely, the volumetric
In science, a formula is a concise way
Watt is the unit of power (symbol: W). The watt unit
(j l, joul) The SI derived unit used to measure
A molecule is the smallest particle
An atom is the smallest constituent unit of
Sunday, 7 February 2016
force definition. In physics, something that causes a change in the motion of an object. The modern definition of force (an object's mass multiplied by its acceleration) was given by Isaac Newton in Newton's laws of motion.
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