Measurements 7 Flashcards
1
Q
3 types of physical quantities
A
Fundamental or basic qty
Derived qty
Supplementary qty
2
Q
1 metric tonne =
A
1000 kg
3
Q
Quintal =
A
100 kg
4
Q
1 day contain how many seconds or minutes
A
86400 seconds or 1440 minutes
5
Q
Area of a sphere
A
4πr x r
7
Q
SI system when discovered
A
1960
8
Q
Volume of a sphere
A
4/3 x π x r x r x r
9
Q
Temp SI unit
A
Kelvin
11
Q
Force SI unit
A
Newton
12
Q
SI unit of mass
A
Kg
13
Q
Force formula
A
Mass x acceleration
14
Q
Pressure SI unit
A
Pascal
15
Q
Electric current SI unit
A
Ampere
16
Q
Luminous intensity SI unit
A
Candela - cd
17
Q
Early systems of measurement were based on only 3 fundamental quantities
A
Mass , time and length
17
Q
Pressure formula
A
Force/ area
18
Q
M =
Measure of a physical quantity
A
N x U- where N stands for number and U stands for unit
20
Q
Tera
A
10 raised to 12
