Its the quantity which you can write down numerically. A vector is a measuring tool for quantities that have both magnitudes as well as direction, and when a quantity has both magnitude and direction then we can say that it is a vector quantity. Vector was not developed in its current form until the late 19th century. In material science, a scalar or scalar amount is a physical amount. It does not have any dependence on the direction. A physical quantity completely defined by its magnitude; examples of scalars include distance, density , velocity, energy, mass, and time is called a scalar quantity.
Now we understand the definition of Vector that is the physical quantity with a magnitude as well as direction. It is represented by an arrow and the direction of this arrow is the same as that of the quantity.
A vector is known as a unit vector when its magnitude is 1 and this unit vector is used to define the direction. For calculating every vectorial unit we need a vector, so we need to understand this term. Vector is being used in our day to day life to locate objects and individuals. In sports like basketball, Cricket, Baseball Vector is used by the players. The player throws the ball or shoots the target with an angle in a direction.
A vector is defined because of its magnitude and direction. So if we are making even a small change in either its magnitude or direction, a vector can be changed. The mathematical quantities that are used to describe the motion of objects can be divided into two categories. The quantity is either a vector or a scalar. These two categories can be distinguished from one another by their distinct definitions:. The remainder of this lesson will focus on several examples of vector and scalar quantities distance, displacement, speed, velocity, and acceleration.
As you proceed through the lesson, give careful attention to the vector and scalar nature of each quantity. As we proceed through other units at The Physics Classroom Tutorial and become introduced to new mathematical quantities, the discussion will often begin by identifying the new quantity as being either a vector or a scalar. To test your understanding of this distinction, consider the following quantities listed below.
Categorize each quantity as being either a vector or a scalar. The vector quantity is determined by both the magnitude as well as the direction of the physical quantity. Considering the dependency on the physical quantities and the direction, they can be classified into two categories — vector and scalar.
The concept of Physics is based on mathematics. Scalar and vector quantities are the two mathematical quantities that explain the motion of a body. For a common person, the two terms are the same, but there is a huge difference between them in physics. So have a glance at the information below for your better understanding. The term scalar quantity is defined as a quantity containing only one element in the number field associated with the unit of measurements, such as a degree or meter.
It is a quantity that refers only to size or magnitude, that is defined by a numerical value with a measuring unit. Algebra rules can be applied to link the scalar quantities, like scalars, multiplied, or subtracted similarly as numbers. However, for the scalar quantity, the operation is possible only for the quantities having a similar measurement unit.
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