What would you like to do?
What is difference between a physical quantity and a number?
quantity is amount quality is the condition or value of something in my opinion quality is better than quantity
A unit is the basis of a measurement and the quantity would be howmany of those units there are.
It is the rate.
The quantity which has only direction is called fundamental quantity.Example-Direct current.The quantity which has both magnitude and direction is called derived quantity.Exam…ple-Altranating current.
Scalars are quantities that have magnitude only; they are independent of direction. Vectors have both magnitude and direction. vectors need bold letters to show them.
Quantity is how much of something that you have. Quality is how long something lasts or how "good" it is.
In the SI system , there are two categories of unit: the Base Unit and the Derived Unit . There is no such category as 'fundamental unit'. There are seven Base Units.… These are: the metre, kilogram, second, ampere, kelvin, candela, and mole. All other units are Derived Units, and these are combinations of Base Units, sometimes given special names. For example, the coulomb is a Derived Unit, and is equivalent to an ampere second, which are both Base Units..
more, less, equal
A scalar quantity is just a number e.g. 3 miles A vector quantity is a number with directions e.g. 3 miles south So the difference between them is that vector has a particular… direction to go with but a scalar quantity is just a number.
same as quantity is something of everything and quality is everything of something
Which quantity helps you better understand the relationships between bond type and physical characteristics electronegativity difference or percent ionic character?
The quainty of this helps because it deals with different scales and most people find the pauling scale to be the easy. the electronegativity kind of help me understand it …because the way you have to calculate it and the different scales they use. I found the pauling scale to be easy.
Base quantities (Scalar Quantities) : Independent quantities who have single standard units. - time /seconds -distance/meters Derived Quantities (Vector Quantities): Qua…ntities derived by multiplying or dividing 2 base quantities. - Velocity = distance/time unit of Velocity = m/s
Vector quantity is a quantity characterized by magnitude and direction.Whereas,Scalar quantity is a quantity that does not depend on direction.
A physical property of a material is an intrinsic characteristic ofthis material; examples: density, hardness, refractive index,boiling point etc. This not depends on the mate…rial mass. The physical quantity is a measure of the property; examples:g/cm 3 , volt, pascal, coulomb etc.
The physical property is measured by physical quantities. Examples: a mass is measured in kg, the thermal conductivity ismeasured by W/m.K, the density is measured by g/cm 3 .…
There are several reasons. Measurement units evolved over time. People used different units across countries over time. Even now, you have the Imperial system that has been m…ostly abandoned by developed countries across the world. But USA, Burma, Liberia and a few Caribbean islands still use the Imperial system (or a variant). Differences in scale: It would make little sense to measure the distance between two cities in metres, or the size of an ant. In the first case you would use a kilometre, in the second a millimetre. Sometimes the way in which a physical measure is derived will affect its units. Energy can be defined as the ability to do work and so the unit is the same as the unit for work: a Joule. However, thermal energy is defined as the amount of heat required to raise the temperature of 1 gram of pure water by 1 kelvin and in 1 calorie.