SI units

Question 1

amount of substance

Answer 1

n measured in mole mol

Question 2

temperature

Answer 2

T measured in kelvin K using a thermometer

Question 3

electric current

Answer 3

I measured in amperes A using an ammeter

Question 4

mass

Answer 4

m measured in kilograms kg using a balance

Question 5

time

Answer 5

t measured in seconds s using a stopwatch

Question 6

nano

Answer 6

n 0.000 000 001

Question 7

micro

Answer 7

µ 0.000 001

Question 8

milli

Answer 8

m 0.001

Question 9

centi

Answer 9

c 0.01

Question 10

deci

Answer 10

d 0.1

Question 11

kilo

Answer 11

k 1000

Question 12

mega

Answer 12

M - 1 000 000

Question 13

giga

Answer 13

G - 1 000 000 000

Question 14

Density

Answer 14

ρ measured in kilograms per meter cubed kg/m3 (cubed)

Question 15

resistance

Answer 15

R measured in ohms Ω

Question 16

Voltage

Answer 16

V measured in volts V

Question 17

charge

Answer 17

Q coulombs C

Question 18

power

Answer 18

P is measured in watts W

Question 19

energy

Answer 19

E is measured in joules J

Question 20

frequency

Answer 20

f measured in hertz Hz

Question 21

volume

Answer 21

V measured in meters cubed

Question 22

acceleration

Answer 22

a measured in meters per second squared - m/s2(squared)

Question 23

force

Answer 23

F measured in newton’s - N

Question 24

pressure

Answer 24

p measured in pascals Pa

Question 25

area

Answer 25

A measured in meters squared m2(squared)

Question 26

speed

Answer 26

v measures in meters per second - m/s

Question 27

giga

Answer 27

G - 1 000 000 000

Question 28

kilo

Answer 28

k 1000