Vector Quantity Definition Physics
It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantitys magnitude.
Vector quantity definition physics. Vector definition in math and physics in physical science and engineering a vector is a geometric object which has both magnitude or length and direction. The measurement of the increase or decrease in the mediums temperature is a vector quantity. A vector is commonly represented by a line segment in a specific direction indicated by an arrow. Increasedecrease in temperature the measurement of the mediums temperature is a scalar quantity.
Vector quantities however refer to both the direction of the mediums movement as well as the measurement of the scalar quantity. Therefore one often talks about vectors without specifying the vector space to which they belong. The direction of a vector can be given in a written description or drawn as an arrow. In mathematics and physics a vector is an element of a vector space.
A vector is a quantity that has both a magnitude and a direction. For many specific vector spaces the vectors have received specific names which are listed below. A vector with the value of magnitude equal to one and direction is called unit vector represented by a lowercase alphabet with a hat circumflex. Vector quantities are important in the study of motion.
The remainder of this lesson will focus on several examples of vector and scalar quantities distance displacement speed velocity and acceleration. Specifically in a euclidean space one considers spatial vectors also called euclidean. In this lesson you will learn about the properties of vectors magnitude and. What is the difference between a scalar and vector.
As you proceed through the lesson give careful attention to the vector and scalar nature of each quantity. Although a vector has magnitude and direction it does not have position. Vectors are quantities that are fully described by both a magnitude and a direction. A vector refers to any quantity that needs a magnitude and a direction in order to fully describe the quantity.
The length of an arrow represents the magnitude of the quantity. Some examples of vector quantities include force velocity acceleration displacement and momentum. If one arrow is twice as long as another it. Historically vectors were introduced in geometry and physics typically in mechanics before the formalization of the concept of vector space.
Vector quantities are used extensively throughout physics to describe physical systems and to calculate the effects that different parts of the system have upon one another.
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