Examples of scalar measurements in physics include time, temperature, speed and mass, whereas examples of vectors consist of velocity, acceleration and force. Scalars describe one-dimensional quantities that are measured with just one property. Vectors need two or more different types of measurements to describe a certain quantity.
Know MoreTime is a scalar that needs just one measurement to describe a quantity of seconds, minutes, hours or days. Mass is described by ounces, pounds or tons. The motion of an aircraft can be described by vectors pertaining to displacement, direction, acceleration and velocity. An airplane travels in a direction using many different scalar quantities such as speed, mass, energy and work. Direction of travel is what makes the airplane's motion a vector.
Some measurements can be confusing as to whether they are scalars or vectors. Mass is a scalar, but weight is a vector because there is direction based upon gravitational forces. Speed is a scalar measurement but velocity is a vector because it includes the direction an object travels.
Vector diagrams are shown on paper as lines with an arrow showing direction. The length of the line determines the strength of the vector. Short vectors are not as powerful as long vectors.
Learn more about BasketballA total of 42 players have been drafted into the NBA straight out of high school from 1962 to 2005. Beginning with the 2006 Draft, the NBA adopted a rule prohibiting players from entering the draft until one calendar year after their high school graduation.
Full Answer >There are two ways to qualify for the NCAA Division I basketball tournament. Thirty-one teams automatically qualify by winning their conference post-season championship, and the Ivy League sends its regular-season champion. The remaining entrants are selected by an official committee made of college athletics professionals, such as conference commissioners and university athletic directors.
Full Answer >Words to describe a basketball include "orange," "spherical," "bouncy," "grainy" and "rubbery." The game of basketball was invented in 1891 by Dr. James Naismith, and a soccer ball was used before the basketball itself was invented. Naismith asked A.G. Spalding & Bros. to develop the first basketball in 1894.
Full Answer >A basketball hoop is made of a tempered-glass backboard with a steel-and-aluminum hoop. Professional hoop versions do vary from store-bought versions of home basketball hoops.
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