Question

Physical
Quantity

Area

Volume

Density

Speed or
Velocity

Acceleration

Force

Work

Energy

Pressure


Tell SI Unit
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Answer 1

1 A physical quantity is a property of a material or system that can be quantified by measurement. A physical quantity can be expressed as the combination of a numerical value and a unit. For example, the physical quantity mass can be quantified as n kg, where n is the numerical value and kg is the unit.

2 Area is the quantity that expresses the extent of a two-dimensional figure or shape or planar lamina, in the plane. ... In mathematics, the unit square is defined to have area one, and the area of any other shape or surface is a dimensionless real number.

3 Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance or shape occupies or contains. Volume is often quantified numerically using the SI derived unit, the cubic metre.

4 The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion (e.g. 60 km/h to the north).

5 Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.

6 In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.

7 In physics, work is the product of force and displacement. A force is said to do positive work if (when applied) the force has a component in the direction of the displacement of the point of application. ... Work transfers energy from one place to another, or one form to another. The SI unit of work is the joule (J).

8 Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled gage pressure) is the pressure relative to the ambient pressure. Various units are used to express pressure.

9 The International System of Units is the modern form of the metric system. It is the only system of measurement with an official status in nearly every country in the world

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Answer 2

Answer:

Explanation:

A)PHYSICAL QUANTITY         SI UNIT

1. Length                                    metre (m)                          
2. Mass                                       Kilogram(kg)
3. Time                                        seconds(s)
4. Electric Current                    ampere (A)
5. Temperature                          Kelvin(K)
6. Amount of substance           mole(mol)
7. Luminous intensity               candela (cd)

B) Area                                             $metre^{2}( m^{2})$

C) Volume                                         $metre^{3}( m^{3})$

D) Density                                           $\frac{kg}{m^{3} }$

E)Speed or  Velocity                          $\frac{m}{s}$

F) Acceleration                                  $\frac{m}{s^{2} }$

G) Force                                             Newton(N)

H) Work                                              Joule(J)                            

I) Energy                                            Joule(J)

J)Pressure                                         Pascal(Pa)

and thats it

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