2.1 Physical Quantities And Units

Question 1

What are the 7 SI base units

Answer 1

Mass - kilogram (kg)
Length - meter (m)
Time - second (s)
Temperature - kelvin (K)
Amount of a substance - mole (mol)
Electric current - ampere (A)
Luminous intensity - candela (cd)

Question 2

What are the prefixes to the positive power

Answer 2

Kilo (k) x10 ³
Mega (M) x10 ⁶
Giga (G) x10 ⁹
Tera (T) x10 ¹²

Question 3

What are the prefixes to the negative power

Answer 3

Milli (m) x10 ^-3
Micro (µ) x10 ^-6
Nano (n) x10 ^-9
Pico (p) x10 ^-12