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scalar means a quantity which has only value,but has no direction.
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What are scalar waves?
Scalar waves are a type of electromagnetic that works outside of physics. They have to do with points in space.
What is scalar field?
In mathematics and physics, a scalar field associates a scalar value to every point in a space. The scalar may either be a mathematical number, or a physical quantity.
Why speed is scalar while velocity is vector?
Speed is scalar (that is, without direction) and velocity is a vector (speed plus direction) by definition in physics.
Is velocity a scalar or vecrore quantity?
The word "velocity", as used in physics, is a vector. If you want a scalar (you don't care about the direction), you would talk about the "speed".
Is amount of substance a vector or scalar quantity?
In physics, "vector" usually means that a direction is relevant. If you just have a number, as in "number of moles", then a direction is NOT relevant.
Is velocity speed?
As used in physics, the two are different. Speed is a scalar, velocity a vector.
What One property does a scalar have?
As opposed to a vector, a scalar has a single number. In physics, this is used in situations where a single number is enough to describe something.
What are the major concepts of a scalar and vector quantity in physics?
That vectors are just scalars WITH a direction. (for example 50 miles is a scalar distance, but 50 miles north is a vector)
What does gradient mean in physics?
Gradient means the vector derivative (Del) of a scalar quantity, e.g. for the Gravity Potenttial/scalar energy, Del-mGm/r= mw2R.
Work done is scalar or vector?
Physics as taught in high school would say that work is a scalar quantity.More sophisticated forms of physics would say that work done is a Quaternion, both a scalar and a vector.Work is bothw= [0,F][0,D]=[ 0 - F.D, 0 + 0 + FxD] = [-F.D, FxD] = -F.D + FxD. -F.D = -FDcos(FD) is scalar work out, andw= FxD= FDsin(FD) a vector called Torque.
What is the use of dot product in Physics and explain?
Dot Products in Physics denote scalar results fmo vector products, e.g Work = F.D = FDCos(FD) a scalar result from the dot product of two vectors, F Force and D Displacement.
Why work is scalar quantity where as force and displacement are vector quantity?
Work is the product of a force a nd a displacement. Both of those are vectors. There are two ways to multiply vectors. One of them produces another vector, the other produces a scalar. The calculation for 'work' uses the scalar product. The procedure is: (magnitude of one vector) times (magnitude of the other vector) times (cosine of the angle between them). Answer2: Work is a scalar because Physics has a major defect in defining energy as a scalar. Nature defines energy as a Quaternion, the sum of a scalar and a vector. Work is a Quaternion, W = FD= -F.D + FxD , -F.D is a scalar and FxD is a vector. Physics defines Work as -FDcos(FD) and defines FxD = FDsin(FD) as Torque. When Physics understands Nature and Quaternions, then both F.D and FXD will both be recognized as energy, scalar energy and vector energy.
