2.1 PHYSICAL QUANITIES & UNITS

Question 1

what are S.I base units?

Answer 1

the Systéme International (S.I) includes a set of base units for physical quantities from which lots of other units are derived

Question 2

what is ‘checking the homogeneity of physical equations’?

Answer 2

this is when you check that the units of an equation are the same on both sides

Question 3

what is prefix for mili and what it the power of 10 multiple?

Answer 3

m

x10^-3

Question 4

what is prefix for micro and what it the power of 10 multiple?

Answer 4

μ

x10^-6

Question 5

what is prefix for nano and what it the power of 10 multiple?

Answer 5

n

x10^-9

Question 6

what is prefix for pico and what it the power of 10 multiple?

Answer 6

p

x10^-12

Question 7

what is prefix for kilo and what it the power of 10 multiple?

Answer 7

k

x10^3

Question 8

what is prefix for mega and what it the power of 10 multiple?

Answer 8

M

x10^6

Question 9

what is prefix for giga and what it the power of 10 multiple?

Answer 9

G

x10^9

Question 10

what is prefix for tera and what it the power of 10 multiple?

Answer 10

T

x10^12