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Why pressure is scalar quantity where as force is vector quantity?

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In Units of Measure, Physics, Kinematics
Pressure is the force acting in all directions on an area while force is a push or pull in a direction. To understand this, we have to know how pressure or force originates. While the force is applicable to rigid materials, the term pressure is applicable for bulk materials (like water) where individual particles are considered as soft. When a force is applied from one direction on the soft particle, the soft particle gets distorted and projects out in all directions. Pressure thus do not have any unique direction but all, while a force has a unique direction. When a bomb blasts, it effects in all directions in air whereas if a running car hits, it effects in the specific direction only. A parameter effecting in all directions uniformly is considered as if it is a scalar.
The pressure acts to all the directions uniformly. I mean in 360 degrees. So, we can't define a direction for pressure.
The formula P= F/A is only the magnitude relation, not direction. It should be kept in mind.
Mathematically, it can be understood as pressure is the ratio of force and vector area (which has direction along the normal to the surface upon which the force is acting, and if the force is not normal to to the surface we take component of force along normal. )
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Is force a scalar or vector quantity?

Force is a vector quantity . It has both magnitude and direction . Let's look at a something and think about it. If you apply a force to something in an attempt to move it, the force will have to have direction associated with its magnitude. It must have direction. It doesn't make sense for force to not have direction. Gravity is a force of attraction between masses. A ball falls because the earth attracts it, and it falls down . That's the direction vector associated with gravity.

Is voltage a vector or scalar quantity?

In DC(direct current) circuits, voltage is scalar. But in the case of alternating-current(AC) voltage is vector quantity. It is because in an AC circuit the current is changing the direction for every time period. Therefore, since in this the direction matters its a vector quantity. Regards.

Is mass a scalar or a vector quantity?

Mass is a scalar quantity. Scalar quantities are those characteristics of matter that can be measured with a scale, while vector quantities are those that involve direction as well as quantity.

Is Area a scalar or vector quantity?

it's a rather puzzling idea, but area can be either a scalar or vector quantity. Usually area is a scalar quantity. E.g. the area of my house is 2000 square feet. In more advanced calculus courses you'll run into area vectors.. area is a vector because as u know pressure=force/area which is scalar"pressure"=vector"force" / X"area" area"X"= force/pressure which is vector/scalar =vector so area is a vector . In geometry , for a finite planar surface of scalar area S , the vector area . is defined as a vector whose magnitude is S and whose direction is perpendicular to the plane, as determined by the right hand rule on the rim (moving one's right hand counterclockwise around the rim, when the palm of the hand is "touching" the surface, and the straight thumb indicate the direction)..

Is energy a vector or scalar quantity?

Energy is a scalar quantity. Answer2: It depends on the angle! Energy can be a scalar or a vector; consider the vectors F force and D displacement: FD = -F.D + FxD = |F||D| (cos(angle) + v sin(angle)). F.D is called work a form of energy and is a scalar; FxD is called Torque and is a vector form of energy. both work and Torque have units of joules or newton times meters. Energy like many quantities in physics is a quaternion consisting of a scalar part and a vector part; E = Escalar + Evector = E(cos(angle) + v sin(angle)), whether the quantity is a scalar or a vector or both depends on the angle.

Is speed a vector or scalar quantity?

Speed is a scalar quantity because it has magnitude but not direction, velocity is a vector quantity because it has magnitude and direction.

Is distance a vector or scalar quantity?

Distance is a sclar quantity. A scalar quantity is a magnitude only. A vector has magnitude and direction. Distance AND direction is a vector quantity.

How does vector quantity differ from a scalar quantity?

A scalar quantity defines only magnitude, while a vector quantity defines both a magnitude and direction.

What are examples of vectors and scalar quantity?

Vectors; velocity, displacement, force, acceleration. Scalars; Speed, distance, temperature. A2: What it is is vectors have directions and magnitude and scalars only have magnitudes.

Is motion a vector or scalar quantity?

Either, or both.. Motion can be described in either vector or scalar terms. Speed is a scalar quantity, having only a magnitude. Velocity is a vector quantity, having both magnitude and direction. Acceleration is a vector quantity.

Is momentum a vector or scalar quantity?

Momentum is a vector quantity . We know that momentum is the product of mass and velocity, and velocity has direction. That makes velocity a vector quantity. And the product of a scalar quantity and a vector quantity is a vector quantity.

Is time a vector or scalar quantity?

Time is a scalar quantity. And any interval of time is also scalar. It has magnitude only. A vector quantity is a scalar quantity that has the added or extra "dimension" of direction . Time has magnitude, but is not considered to have direction as such. Time, though it can be "tricky" to deal with in quantum mechanics, is generally thought of as moving "forward" and generally cannot more in another direction. (Save the "exceptions" for more advanced physics, please.) Time travel is relatively impossible now, but if you graphed time, you would see a parabolic motion.

Is gravity a vector or scalar quantity?

Gravity is a vector, because it is a form of acceleration (which we know by definition is a vector). Vectors hold more 'information' than scalars, because vectors are, put simply, a scalar + a direction. To help you figure out these types of questions in the future, all you have to do is figure out whether direction is an important aspect of the value in question.

How does a vector quantity differ from a scalar?

A vector differs from a scalar in that the vector has a direction in a dimensional sense. Mathematically, the square of a vector is negative and the square of a scalar is positive. Unfortunately Vectors used in physics are mathematically defective in that the square of J. Willard Gibbs Vectors is positive and nonassociative as a result. Willaim Rowana Hamilton invented vectors and his rule is i^2=j^2=k^2=ijk=1. Tghis is the porper distinction of vectors. it has direction

Is Acceleration a vector or scalar quantity?

Acceleration is both a scalar and a vector. Acceleration is a Quaternion quantity. For example in Gravitational force F=ma = XW= [d/dr, Del] [ -mu/r , cmV]: a= [d(-u/r)/dr - cDel.V, cdV/dr + Del (-u/r) + cDelxV] a= [v 2 /r -cv/r cos(RV), dV/dt + w 2 R + cv/r sin(RV) 1RxV] The terms before the comma ',' are scalar accelerations and the terms after the comma are vector accelerations. v2/r is the centripetal acceleration, center seeking); -cv/r cos(RV) is the centrifugal acceleration (center fleeing); dV/dt = - cV/r is the tangential vector accceleration; w 2 R is the radial vector acceleration; cv/r sin(RV) 1RxV is the Curl (circulation) acceleration.

Is energy a vector quantity or a scalar quantity?

energy is a scalar quantity because energy does not has any direction . vector quantities need direction as well as magnitude. Answer2: Energy is like many concepts a Quaternion, i.e the sum of a scalar and a vector. Examples of vector energy FxD = Vector energy called Torque. cmV = cmV = cP is vector momentum (P) Energy. This energy is the so- called "Dark Energy".

How can you tell which is a scalar and which is a vector quantity?

Ask yourself "Does the direction make any difference ?". Cost of a house, volume of a sound, temperature of a hamburger: 'No' > scalar quantities. Velocity on my trip home, force on a ball at the top of a hill: 'Yes' > vector quantities

Is heat a vector or scalar quantity?

A scalar quantity. 102 degrees Fahrenheit is not a vector quantitybecause it doesn't have a magnitude or a direction. Vectorquantities have magnitudes and directions. The example this person gave, "102 degrees Fahrenheit," is aTEMPERATURE. Temperature is different from heat. One measures thetemperature of a body (like a human or a conducting sphere). Heatis a quantity used to denote a _flow_ of energy (Have you everheard someone mention "heat flow" before?). This person asked avery insightful question, really. Unfortunately, I don't quite have a thoroughly good explanation(meaning: I don't know what imagery to use to help elucidate what Iam saying). However, if you consult the first law ofthermodynamics, you can see that HEAT has units of ENERGY and soheat MUST BE a SCALAR quantity (as energy is a scalar quantity). Oh, ans "scalar" means that there is no directionality associatedwith the quantity; if something is a scalar, then it is definetlynot a vector!

Example of Scalar Quantities and Vector Quantities?

Scalars: -- temperature; (68 degrees, no direction) -- cost; ($37.50, no direction) -- speed; (35 mph, no direction) Vectors: -- trip to the store; (2 blocks, West) -- force of gravity; (170 pounds, Down) -- velocity; (35 mph, North)

Is stress is a scalar quantity or vector?

Stress is tensor quantity. The stress tensor has 9 components. Each of its components has a magnitude (a scalar) and two directions associated with it.

The moment of a force is vector or a scalar quantity?

It is a vector quantity because it got direction such as clockwise and anticlockwise.now every time a physical quantity having magnitude and direction doesn't have to be a vector. for example current electricity, it has both magnitude and direction but its a scalar quantity.another criteria is that a vector can only be calculated (add,substract) by using vector rules. moment of force can only be calculated using vector methods not algebra methods.so its a vector

Is mechanical force a vector or scalar quantity?

Any time a direction might be relevant, you would use a vector. This includes forces in general. For example, if you and I push a car together in the same direction, this is not the same as if we we push in opposite directions. The results will be quite different.

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.

Is power a vector quantity or a scalar quantity?

Power cannot be quantified but force can which can be expressed in vectors or measured in Newtons.

How are scalar and vector quantities similar?

Scalar and vector quantities give magnitude , and that makes them similar. The difference is that the vector quantity gives direction as well as magnitude.

What is a scalar and vector quantity?

Scalar quantities are those which have magnitude but not any specific direction, but vector quantities have both magnitude and direction.

What is acceleration a scalar or vector quantity?

A vector. Acceleration is defined as change in velocity in a given time, in symbols a = ( v - u ) / t (the bolded symbols represent vectors) t is a scalar so its inverse is also a scalar. ( v - u ) is a vector so a = vector * scalar = a vector. Answer2: Acceleration like many quantities is a Quaternion, consisting of a scalar part and a vector part. a= mv 2 /r is a scalar acceleration and A=dV/dt is a vector acceleration as is cV/r = A.

Is area scalar or vector quantity?

area is scalar.because we will not say that your area in this direction and my area in this direction . so,area has only magnitude Answer2: the product of two displacements produce a vector area, AxB this is a vector area. BxA is an opposite area.

Is power scalar or vector quantity?

Power should be only scalar as there is no direction to the power, just the magnitude.

Is weight a scalar or a vector quantity?

It is a vector quantity because it has both magnitude and direction. (Mass is a scalar quantity)

Is length a scalar quantity or a vector quantity?

length is a scalar quantity buddy . but displacement is vector quantity. Length is a vector quantity If it is associated with direction.. Because having direction make it vector... S0 being vector or scalar depends upon how and where it is used..

Is bytes a vector or a scalar quantity?

A byte is 8 bits. They can represent all of the ASCII characters and any value between 0 and 255. It could be both. It just represents a value.

Is moment a vector or scalar quantity?

A vector. Since velocity is a vector, moment, which is mass x velocity, is also a vector.

How are scalar quantities different from vector quantities?

Scalars represent a single measure, such as the speed of something. All cars going 30 miles an hour have a speed of 30 miles per hour, no matter in which direction they travel. Vectors combine magnitude (how large) with a second data item such as directionality. Thus, a car traveling due north at 30 miles per hour has a velocity (note the change of speed, a scalar, to velocity, a vector) of 30 miles per hour north. Another car might have a velocity of 30 miles per hour 10 degrees clockwise of north. A scalar is one dimensional. It is charted along a single axis. Vectors have two or more dimensions and are charted multidimensional.

Is speed a scalar quantity or vector quantity?

Speed is a scalar quantity as it has magnitude, and no direction. Velocity, on the other hand, is a vector quantity as it has both magnitude and direction.

Is air a vector or scalar quantity?

None of the following questions has an answer: -- How much air do you weigh ? -- How many air is it from Chicago to Milwaukee ? -- How much does one air of gasoline cost ? -- How many air do you earn each week on your job ? -- How many air of sleep did you get last night ? -- How much air does it take to run your refrigerator ? -- How many air did Farmer Brown plant in corn this year ? -- What is the acceleration of gravity on Mars, measured in air ? -- How many air is the speed limit in your neighborhood ? It seems that air is not a "quantity" at all.

Why pressure is a scalar quantity while stress is a vector?

For specifying pressure u need only magnitude, but for specifying stress u need magnitude,direction and plane Remember stress is not a vector but it is 2nd order tensor..........

How is scalar quantity different from a vector quantity?

Scalar quantities have only magnitude (numerical value) such as length. Vectors on the other hand, have magnitude AND direction, such as acceleration.

What are the quantities that identifies scalar and vector quantities?

A vector is characterized by having not only a magnitude, but a direction. If a direction is not relevant, the quantity is called a scalar.

Why is force of a vector quantity and not scalar?

Force is a vector, at least in our universe, because it has both magnitude and direction. It is not enough to say how hard you are pushing - you also have to say which way. Sometimes only the magnitude is given when the direction is understood, but this is just for convenience in situations where no confusion can arise. For example, you may see it stated that the centripetal force is simply mv 2 /r, but this short-cut is only permissible because it is understood that the vector is directed towards the centre of the circular path. If force were merely a scalar, of course, Newton's second law - which states the net force is proportional to the acceleration (obviously a vector) - would not make sense.

Is debt a vector or scalar quantity?

debt is a scalar quantity. It is a single number - how much money you (or government, or whoever) owes

How scalar and vector quantities are represented?

Scalars are represented with a real number. Vectors by a number and a direction or a location in the complex plane.

Is iota scalar quantity or vector quantity?

An iota is traditionally the smallest part imaginable, or even smaller, of whatever you may be thinking or talking about. And that may be anything, money, consideration, thought, courtesy, concentration of alcohol in beer, acceleration of a vehicle. The last is strictly a vector, although people generally think of its magnitude, which is a scalar. In general, if its a vector beihg talked about, the "iota" will be its magnitude, and so a scalar. Derived from the smallest Greek letter.

What is the importance of scalar and vector quantity?

Scalar quantity is the usual one. It is already there unavoidable. But vector is the new one. Why do we need it? Suppose say two persons by name John and Johann push a box with forces 4N and 3N, what could be the effective force on the box? One may say 7 N by adding them. One may say just 1N because of getting the difference. Another may say 5N. How? Why do they give different answers? It is because the directions in which the forces acting are considered in different ways. If both in the same, addition is ok. If in opposite then difference is right one. If they are at right angles then pythagros technique. So direction is the most essential data to get the right answer. Hence magnitude with direction is known to be vector quantity.

How do vector and scalar quantities differ?

Scalars are quantities that only have a length, not a direction. A vector is something that has a length and a direction. A vector is commonly used in maths and it comes in the form of an arrow which has both a direction and a distance. An example of a scalar would be time as time flows forwards at different rates across the universe but across all of these rates you will never find that time has a direction. You can't say I'll be there in 5 minutes in 20 meters. ======= Scalar has only magnitude. Examples: Time, distance, speed, mass, work, power, energy, frequency, moment of inertia, electric charge, electric current etc. Vector has both magnitude and direction. Examples: displacement, velocity, momentum, acceleration, force, magnetic field induction, electric field intensity. Even area has to be considered as vector. The beauty is length is a scalar and electric current is also a scalar. But combination of these two would be considered as vector. The current direction would be handed over to the length and thereby " i dl" would be considered as vector.

Is angle vector or scalar quantity?

Almost all of us would say that angle is a scalar quantity. But the beauty is that angle is a vector quantity. Now the question arises. Where will be the direction? As we measure the angle in a plane in counter clockwise direction, then direction of angle vector will be perpendicular to the plane and coming out of the surface. If the angle is measured in clockwise then vector would go into the surface normally. As angle becomes vector then angular velocity w = @/t also becomes a vector.

Is upthrust a vector or a scalar quantity?

You've already told us its direction. As soon as you tell us its magnitude, we'll have a vector.

Is beauty scalar or vector quantity?

It is neither. The terms "scalar" and "vector" are used to physical measurements; things that can actually be measured with a certain amount of precision.

Is pressure a scalar quantity or vector quantity?

Pressure is a scalar quantity that is given in units of force perunit of area. . pounds per square inch . Pascals which are Newtons per square metre

What is an example for vector and scalar quantity?

Scalar quantities are an amount, for example 5 pounds, 15 feet,etcetera. . Vector quantities are an amount coupled with a direction, forexample 20 miles northwest, 7 meters south, etcetera.