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How do the units of volume differ from the units of area?
Length is a one-dimensional quantity, area is a two-dimensional quantity, and volume is a three-dimensional quantity. Length is defined in terms of linear units, feet (ft) and meters (m), for example. Area is defined in terms of square units, such as square feet (sq ft or ft2) or square meters (sq m or m2). Volume is defined in terms of cubic units, such as cubic feet (cu ft or ft3) or cubic meters (just m3). By the way, saying that a surface has an area of 100 square feet (sq ft) is the same as saying it has an area of 100 feet squared (ft3). Note that there are other units of area that don't involve the words square or squared. Some examples are acre, are, and hectare. The last two are metric units. Also note that there are units of volume that don't involve cubic units. Some examples are ounce, pint, quart, gallon, milliliter, and liter. Some people refer to those units as units of "capacity," but they are essentially units of volume.
How many cc in 80 inches?
Actually none! Why? "cc" measures the quantity in volume while "inches" measures the quantity in length. You can't convert "length" units to "volume" units since they are not related to another.
How many standard units are there?
Without knowing the specific subject or sub-category of that subject it is not possible to give a numeric answer.There are several systems of measurement each with different standard units. The most commonly used is the SI system, however, all rely on defined units and others that are derivedfrom these.Defined units would be for such things as mass, length and time.Derived units would be area, volume and speed.These are only examples.There are also units with no physical quantity which are used in certain areas which are purely comparative.An example would be a persons IQ for instance
Why is the fundamental value of a quantity not changed when the quantity is multiplied by a conversion factor?
the conversion factor merely changes the number in such a way that it fits the new units the physical quantity is not changed
What is the volume of 10 units 4 units and 3 units?
Volume = 10*4*3 = 120 cubic units
What physical quantity has the units of length cubed?
Volume is the physical quantity that has units of length cubed. It represents the amount of three-dimensional space occupied by an object.
Why is length called a fundamental quantity?
Length is considered a fundamental quantity because it is a basic physical quantity that cannot be defined in terms of other fundamental quantities. It is used to define other physical quantities such as speed, area, and volume. Additionally, length has its own units of measurement (meter, inch, etc.) that are universally recognized and applied in various scientific disciplines.
How do the units of volume differ from the units of area?
Length is a one-dimensional quantity, area is a two-dimensional quantity, and volume is a three-dimensional quantity. Length is defined in terms of linear units, feet (ft) and meters (m), for example. Area is defined in terms of square units, such as square feet (sq ft or ft2) or square meters (sq m or m2). Volume is defined in terms of cubic units, such as cubic feet (cu ft or ft3) or cubic meters (just m3). By the way, saying that a surface has an area of 100 square feet (sq ft) is the same as saying it has an area of 100 feet squared (ft3). Note that there are other units of area that don't involve the words square or squared. Some examples are acre, are, and hectare. The last two are metric units. Also note that there are units of volume that don't involve cubic units. Some examples are ounce, pint, quart, gallon, milliliter, and liter. Some people refer to those units as units of "capacity," but they are essentially units of volume.
Is volume fundamental or derived quantity?
Volume is a derived quantity because it is calculated by multiplying three lengths together in the SI system of units. The SI base units for length are meters, so volume is expressed in cubic meters (m^3). It is not considered a fundamental quantity like length, mass, or time, which are base units in the SI system.
What is meant by unit of a physical quantity in physics?
The unit of a physical quantity in physics is a standardized way to express and measure that quantity. Units give the quantity a numerical value and specify the scale at which it is being measured. Units are essential for consistency and clarity when communicating about physical quantities.
Why current is base quantity not a charge?
Current is considered a base quantity because it is a fundamental physical quantity that cannot be defined in terms of other physical quantities. It describes the rate of flow of electric charge in a circuit and is measured in units of amperes (A). Charge, on the other hand, is a derived quantity that depends on current and time, making current the more fundamental quantity.
Can a quantity have units but still be dimension less give example?
Yes, a quantity can have units but still be dimensionless if the units cancel out when they are raised to the power of 0. For example, specific volume (volume per mass) has units of m^3/kg, but when you divide volume by mass, the units cancel out and it becomes dimensionless.
Is size a quantity?
Size is a measurable quantity that represents the dimensions or extent of an object or space in physical terms. It is typically measured using standard units such as length, width, height, volume, or area.
What is the physical quantity which has the units Nm?
A joule has units of N-m. It is a unit of energy or work.
How many cc in 80 inches?
Actually none! Why? "cc" measures the quantity in volume while "inches" measures the quantity in length. You can't convert "length" units to "volume" units since they are not related to another.
What refers to quantities such as area volume and velocity?
These quantities are referred to as physical quantities in the field of physics. They are measurable properties that can be described using mathematical values and units. Area and volume are examples of scalar physical quantities, while velocity is an example of a vector physical quantity.
What are defined for each fundamental quantity?
Each fundamental quantity, such as length, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity, is defined by a specific measuring unit within the International System of Units (SI), which establishes a standard for quantifying that particular fundamental property. These units are defined in terms of physical constants or natural phenomena to ensure consistency and accuracy in measurements across different contexts and applications.
