There room a lot of various mathematical quantities supplied in physics. Instances of these include acceleration, velocity, speed, force, work, and power. These various quantities space often explained as gift either "scalar" or "vector" quantities. Below we will discuss what these words mean as well as introduce some an easy vector math.

You are watching: Is energy a scalar or vector

What is a scalar?A scalar is a quantity that is completely described by a size only. That is defined by just a solitary number. Some examples of scalar quantities include speed, volume, mass, temperature, power, energy, and time.What is a vector?A vector is a amount that has actually both a magnitude and also a direction. Vector quantities are important in the examine of motion. Some instances of vector quantities incorporate force, velocity, acceleration, displacement, and also momentum.What is the difference in between a scalar and vector?A vector quantity has a direction and a magnitude, while a scalar has only a magnitude. You deserve to tell if a quantity is a vector by whether or no it has actually a direction associated with it.Example:Speed is a scalar quantity, but velocity is a vector that mentions both a direction as well as a magnitude. The rate is the magnitude of the velocity. A vehicle has a velocity that 40 mph east. It has actually a speed of 40 mph.
*

How to draw a VectorA vector is drawn as an arrow with a head and a tail. The size of the vector is often defined by the size of the arrow. The arrow points in the direction of the vector. Check out the picture above.
How to create a VectorVectors are normally written as boldface letters. Castle can likewise be written through an arrow over the top of the letter.Example questions: Is that a scalar or a vector?1) The football player was running 10 miles an hour towards the end zone.This is a vector because it to represent a magnitude (10 mph) and also a direction (towards the finish zone). This vector to represent the velocity of the soccer player.2) The volume of that box at the west side of the structure is 14 cubic feet.This is a scalar. It can be a little tricky as it gives the ar of package at the west side of the building, yet this has actually nothing to execute with the direction that the volume which has a magnitude of 14 cubic feet.3) The temperature the the room was 15 degrees Celsius.This is a scalar, over there is no direction.4) The car sped up north in ~ a rate of 4 meter per second squared.This is a vector together it has both direction and magnitude. We also know that acceleration is a vector quantity.Interesting Facts about Scalars and also VectorsUnit vectors are vectors v a magnitude of 1. Castle are supplied to specify direction.The credit transaction for inventing vectors is usually given to irish physicist william Rowan Hamilton.Vectors and scalars are crucial in countless fields the math and also science.Vectors deserve to be defined in 2 dimensional or three dimensional space.Vector graphic are periodically used in computers because they deserve to be scaled to a bigger size without losing any image quality.

See more: Urgent! How Much Does A Saddle Weigh ? How Much Does A Western Saddle Weigh, And Why


ActivitiesTake a ten inquiry quiz around this page.More Physics subjects on Motion, Work, and also Energy
MotionScalars and also VectorsVector MathMass and WeightForceSpeed and VelocityAccelerationGravityFrictionLaws the MotionSimple MachinesGlossary of movement TermsWork and also EnergyEnergyKinetic EnergyPotential EnergyWorkPowerMomentum and CollisionsPressureHeatTemperature
Science >> Physics because that Kids

*

HomeworkAnimalsMathHistoryBiographyMoney and also FinanceBiographyArtistsCivil rights LeadersEntrepreneursExplorersInventors and also ScientistsWomen LeadersWorld LeadersUS Presidents us HistoryNative AmericansColonial AmericaAmerican RevolutionIndustrial RevolutionAmerican civil WarWestward ExpansionThe good DepressionCivil rights MovementPre-1900s1900 come PresentUS GovernmentUS State HistoryScienceBiologyChemistryEarth SciencePhysics human being HistoryAncient AfricaAncient ChinaAncient EgyptAncient GreeceAncient MesopotamiaAncient RomeMiddle AgesIslamic EmpireRenaissanceAztec, Maya, IncaFrench RevolutionWorld battle 1World war 2Cold WarArt HistoryGeographyUnited StatesAfricaAsiaCentral AmericaEuropeMiddle EastNorth AmericaOceaniaSouth AmericaSoutheast AsiaFun StuffEducational GamesHolidaysJokes because that KidsMoviesMusicSports