= Unit of work done is
Joule
. Therefore, the dimension formula of work is represented as [M1 L2 T-2].
What is the dimension of force and work?
Dimensional formula for force is
[M1L1T – 2]
and dimensional formula for distance is [M0L1T0]. Thus, dimensional formula for work is [M1L2T – 2]. SI unit of work is kg m2 s−2. Dimensional formula for force is [M1L1T – 2] and dimensional formula for time is [M0L0T1].
What is dimensional formula of work and power?
| Physical quantity Unit Dimensional formula | Power (work/time) Js – 1 or watt (W) ML 2 T – 3 | Pressure (force/area) Nm – 2 or Pa ML – 1 T – 2 | Pressure coefficient or volume coefficient o C – 1 or θ – 1 θ – 1 | Pressure head m M o LT o |
|---|
What is a dimensional unit?
Dimensions are physical quantities that can be measured
, whereas units are arbitrary names that correlate to particular dimensions to make it relative (e.g., a dimension is length, whereas a meter is a relative unit that describes length).
What are the 7 fundamental dimensions?
In total, there are seven primary dimensions. Primary (sometimes called basic) dimensions are defined as independent or fundamental dimensions, from which other dimensions can be obtained. The primary dimensions are:
mass, length, time, temperature, electric current, amount of light, and amount of matter.
What is the dimension of force per unit area?
Dimensions of common physical quantities
Force is one example: Newton (N) is a derived unit for force, equal to kg, m/s2. Another derived unit is Pascal (Pa) for pressure and stress, i.e., force per area. The unit of Pa then equals
N/m2 or kg/ms2
.
What is power dimensional formula?
Power (P)
= Work × time
– 1
. Or, P = [M
1
L
2
T
– 2
] × [T
– 1
] = M
1
L
2
T
– 3
. Therefore, power is dimensionally represented as M
1
L
2
T
– 3
.
What is the formula of power?
P = E/t
: This formula is also called the mechanical power equation. Here E stands for energy in joule and t stands for time in seconds. This formula states that the consumption of energy per unit of time is called power.
What is dimensional formula?
Hint – Dimension formula is
the expression for the unit of a physical quantity in terms of the fundamental quantities
. The fundamental quantities are mass (M), Length (L) and time (T). A dimensional formula is expressed in terms of power of M, L and T. … These will specify the nature of the unit and not its magnitude.
What is difference between unit and SI unit?
Two commonly used systems of units are
English units
and SI units. All scientists and most of the other people in the world use SI, whereas nonscientists in the United States still tend to use English units. The SI base units of length, mass, and time are the meter (m), kilogram (kg), and second (s), respectively.
What are primary units?
This term is used in at least two senses. The first concerns
a statistical unit of record which is basic in the sense that it
does not depend upon any derived calculations, for example: persons, miles, tons, gallons, thousands of an article.
What is the dimensional formula of length?
| Sl. No Physical Quantity Formula | 1 Area (A) Length x Breadth | 2 Volume (V) Length x Breadth x Height | 3 Density (d) Mass / Volume | 4 Speed (s) Distance / Time |
|---|
What are the 7 basic units?
- Length – meter (m)
- Time – second (s)
- Amount of substance – mole (mole)
- Electric current – ampere (A)
- Temperature – kelvin (K)
- Luminous intensity – candela (cd)
- Mass – kilogram (kg)
What is SI unit of weight?
The SI unit of mass is the
kilogram (kg)
. … Thus, the SI unit of the quantity weight defined in this way (force) is the newton (N).
What are the 10 dimensions?
- Length. …
- Width. …
- Depth. …
- Time. …
- Probability (Possible Universes) …
- All Possible Universes Branching from the Same Start Conditions. …
- All Possible Spectrums of Universes with Different Start Conditions.
Is the force per unit area?
Pressure
is defined as force per unit area.
