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How understand that all physical quantities consist of numerical magnitude and units?
Wiki User
∙ 10y ago
Basically, a unit is a type of standard against which a measurement is compared. For example: the standard unit of length is the meter. If you claim that your house (for example) measures 9 meters from north to south, then you are really claiming that the length of your house is 9 times as much as a meter.
Wiki User
∙ 10y ago
Wiki User
∙ 10y agounderstand that all physical quantities consist of a numerical magnitude and a unit
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Do physical quantities have numerical magnitude and a unit?
Many do. For instance, you would probably agree that your own height and weight are physical quantities. Each of these has a magnitude or size and a unit of measurement. They might be, say, 157 cm and 50 kg.
What are the physical quantities of measurement?
The two physical quantities of measurement are: 1. Scalars - quantities with magnitude (size) only examples: distance - 1 km mass - 5kg speed - 80km/h 2. Vectores - quantities having both magnitude and direction examples: displacement - 1km, to the right weight - 50 newtons velocity - 80km/h, west
What is a scalar and what is a vector?
physical quantities having magnitude but not direction are scalars e.g mass, distance,work,energy,temperature area,volume charge etc while those physical which hav direction as well as magnitude are vectors e.gtorque,velocity,displacement,weight,force etc...
Types of physical quantities?
Physical Quantities are of TWO types: 1) Fundamental Quantities. 2) Derived Quantities.
What does hjj mean?
Scalar - a variable quantity that cannot be resolved into components. Most of the physical quantities encountered in physics are either scalar or vector quantities. A scalar quantity is defined as a quantity that has magnitude only. Typical examples of scalar quantities are time, speed, temperature, and volume. A scalar quantity or parameter has no directional component, only magnitude. For example, the units for time represent an amount of time only and tell nothing of direction. Vector - a variable quantity that can be resolved into components. A vectorquantity is defined as a quantity that has both magnitude and direction. To work with vector quantities, one must know the method for representing these quantities. Magnitude, or "size" of a vector, is also referred to as the vector's "displacement." It can be thought of as the scalar portion of the vector and is represented by the length of the vector. By definition, a vector has both magnitude and direction. Direction indicates how the vector is oriented relative to some reference axis.
What is a characteristic of all measurements in physics?
physical quantities have numerical magnitude and unit
Do physical quantities have numerical magnitude and a unit?
Many do. For instance, you would probably agree that your own height and weight are physical quantities. Each of these has a magnitude or size and a unit of measurement. They might be, say, 157 cm and 50 kg.
What are theclassifications of physical quantities according to magnitude and direction?
Physical quantities that need both magnitude and direction for its complete description are known as vector quantities. Physical quantities that need only direction for its complete description are known as scalar quantities.
Similarities between scalar and vector quantities?
Scalar quantities - quantities that only include magnitude Vector quantities - quantities with both magnitude and direction
What is solar quantities?
Scalar quantities are physical quantities that can be described with a single value. They are unlike vector quantities which require both magnitude and direction.
Can we have physical quantities which have magnitude and direction but are not vectors if yes how?
yes we can have. for eg electric current, pressure etc though these quantities have both magnitude and direction their directions are not necessary to define them and vectors are those quantities which has magnitude and requires direction to be defined " quantities having both magnitude and direction is a vector" is not a corrrect definition ofa vector
Difference between vector and scaler quantity?
One difference between scalar processors and vector processors is their startup times, with vector processors needing prolonged startup due to multiple tasks. Another difference is that scalar processors operate on only one point of data at a time.
What are the physical quantities of measurement?
The two physical quantities of measurement are: 1. Scalars - quantities with magnitude (size) only examples: distance - 1 km mass - 5kg speed - 80km/h 2. Vectores - quantities having both magnitude and direction examples: displacement - 1km, to the right weight - 50 newtons velocity - 80km/h, west
What do you exactly mean by magnitude?
The amount is known to be magnitude of a physical quantitiy. 2 second. 2 is the magnitude of time. 5kg, here 5 is the magnitude of the mass. 76 N, this is for the force whose direction is also to be mentioned. Apart from that it has magnitude of 76 N. Those having only magnitude are termed as scalar quantities and those having direction too are taken as vector quantities.
What is a scalar and what is a vector?
physical quantities having magnitude but not direction are scalars e.g mass, distance,work,energy,temperature area,volume charge etc while those physical which hav direction as well as magnitude are vectors e.gtorque,velocity,displacement,weight,force etc...
What do you mean by vectare Quantity give example?
A vector quantity refers to a physical quantity that has both magnitude and direction. Some examples of vector quantities include velocity (speed and direction), force (magnitude and direction), and displacement (distance and direction).
Types of physical quantities?
Physical Quantities are of TWO types: 1) Fundamental Quantities. 2) Derived Quantities.
