The S.I unit is the internationally agreeded system that is now used for all scientific and technological purposes in many countries.
Wats an S.I unit
What are the M.S.K system
They are the; meter, kilometers and second electro magnetic system units.they replace the units used in the T.S.P system (imperialsystem)and the (C.G.S).
What are the features of the S.I units
M.k.S, T.P.S and C.G.S systems.
What is the C.G.S system units
Centimeter, Grams and Seconds.
What's centimeter as a unit 🤔
What's grams as a unit
What's a second as a unit
Cm as a unit is length
Gm as a unit is mass
Second as a unit is time
What are the names of the two types of S.I units
(a)Bass unit
(b)Derived units
What's area
It's the amount of space on a surface enclosed by a particular shape.
What's the S.I unit of “A“
(M²)
A of a square ,rectangle n right angle triangle:
Square:A=L×L
Rectangle:A=L×W
R angle triangle 🔺️:A=B×h÷2
OR
1/2×B×H
Area of a trapezium
A= (a+b)÷2×h
Or
A= 1/2 (a+b)×h
Height is where a/b are parallel.
What's the diameter of a Circle
It's a line that starts at the circumference, runs through the centre and ends at the circumference.
What a radius
A radius is half of the diameter
The area of any circle is given by
A= pie²
A= 1/4 × 3.14 × d²
What's the area if a sphere
A= 4× pie × r²
What's volume 🤔
It's the amount of space that an object occupies.
Its S.I unit is (m³)
The volumes of regular solids
Volumes of length are in meters (m)
Cube:V=’L³’- L×L×L
Cuboid:V=L×H
V=m³
The volume of a cylinder:
V= pie x r² x h
Volume of cylinder is in m³
Radius n height are in meters
Volumes of sphere:
V= ¾ x pie x r³
What's density
It's the amount of mass per unit volume of a substance.
Its symbol is (rho)
D s.i unit of density
Mass
Volume are
Kg/m³
Kg
M³
Zuletzt geändertvor 5 Monaten