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Probability of precipitation (PoP) is a commonly used term referring to the likelihood of precipitation falling in a particular area over a defined period of time, which is commonly a day, half day, or hour. The PoP measure is meaningless unless it is associated with an interval of time.
Multiple choice questions lend themselves to the development of objective assessment items, but without author training, questions can be subjective in nature. Because this style of test does not require a teacher to interpret answers, test-takers are graded purely on their selections, creating a lower likelihood of teacher bias in the results. [8]
Popular science (pop science) is an interpretation of science intended for a general audience. It may also refer to: Science in popular culture, the occurrence of scientific topics in popular media; Magazines. Popular Science (aka PopSci), a U.S. magazine on science, technology, and industry founded in 1872 Popular Science Italia, the Italian ...
Balloon skewer experiment. A pin or needle is frequently used to pop a balloon. [4] As the needle or pin creates a hole on the balloon surface, the balloon pops. However, if tape is placed on the part where the hole is created, the balloon will not pop since the tape helps reinforce the elastic tension in that area, preventing the edges of the hole pulling away from the center. [5]
A splint is lit and held near the opening of the tube, then the stopper is removed to expose the splint to the gas. If the gas is flammable, the mixture ignites. [1] This test is most commonly used to identify hydrogen, which results with a distinctive 'squeaky pop' sound. [2]
It is used to describe a hyperlink that points to a location within the Internet where the user can download a file. When used in conversation, DDL distinguishes itself from other forms of peer-to-peer (P2P) downloading architectures in that it uses a client–server architecture, where 100-percent of the file is stored on a single file server ...
Popular culture (also called pop culture or mass culture) is generally recognized by members of a society as a set of practices, beliefs, artistic output (also known as popular art [cf. pop art] or mass art, sometimes contrasted with fine art) [1] [2] and objects that are dominant or prevalent in a society at a given point in time.
A polarimeter [1] is a scientific instrument used to measure optical rotation: the angle of rotation caused by passing linearly polarized light through an optically active substance. [ 2 ] Some chemical substances are optically active, and linearly polarized (uni-directional) light will rotate either to the left (counter-clockwise) or right ...