This often happens if you take the ratio of two quantities. In that case, the units disappear. For example:* A coefficient of friction, defined as the ratio between two forces
* The specific gravity, defined as a ratio between two densities
-- The physical quantities involved in speed are distance and time. -- Some popular units of distance include the mile, foot, kilometer, smoot, and parsec. -- Some popular units of time include the second, month, week, fortnight, and year.
Area= r x sqaured
Some quantities are termed fundamental because they are considered to be independent and cannot be defined in terms of other physical quantities. They form the basis for other derived quantities, and are necessary for describing the behavior of the physical world. Examples of fundamental quantities include time, mass, length, and electric charge.
Some examples of scalars include temperature, speed, mass, and energy. Scalars are physical quantities that have a magnitude but no direction.
Derived quantities are physical quantities that are derived from one or more base quantities through mathematical operations. Examples include velocity (derived from distance and time with the formula v = d/t), acceleration (derived from velocity and time with the formula a = Δv/Δt), and density (derived from mass and volume with the formula ρ = m/V). These derived quantities are essential in physics and other scientific fields for describing and analyzing various phenomena.
derived units come from basic units such as length, time, electrical current.AnswerIn SI, Derived Units are any units that are not Base Units. There are seven Base Units, from which all Derived Units are formed. For example, a coulomb (derived unit) is equal to an ampere second (both Base Units).
Some of the basic types of physical quantities in chemistry include temperature, mass, quantity, length, and time. Some other physical quantities are amount of substance, electric current, and luminous intensity.
Quantities are called fundamental if they are independent and cannot be expressed in terms of other physical quantities. Fundamental quantities are considered basic building blocks in a specific field of study and serve as a starting point for defining other derived quantities. Examples include length, time, and mass in physics.
What are some examples of physical geography
m to the second
Those quantities which cannot be derived from any other such as length, mass, time, temperature, electric current, light luminosity are examples for fundamental physical quantities.
Selecting fundamental units is necessary because they serve as the foundation for all other units in a system of measurement. By defining a set of fundamental units, we can create a consistent and standardized way to quantify physical quantities. This ensures that measurements across different contexts and locations are uniform and easily comparable.