Specification point 2.1 Physics OCR A A-level
Name 6 S.I base quantities
-Length
-Mass
-Time
-Current
-Temperature
-Amount of substance
State the S/I base unit and symbol for length
Metre (m)
State the S/I base unit and symbol for mass
Kilogram (kg)
State the S.I base unit and symbol for time
Seconds (s)
State the S.I base unit and symbol for current
Ampere (A)
State the S.I base unit and symbol for temperature
Kelvin (k)
State the S.I base unit and symbol for amount of substance
Mole (mol)
What is homogeneity of units
The units in an equation must be equal on both sides.
What are S.I base units
7 base units in which every other unit is derived from
What is the symbol and unit of the prefix nano
n
1 × 10^-9
What is the symbol and unit of the prefix micro
1 × 10^-6
What is the symbol and unit of the prefix milli
m
1 × 10^-3
What is the symbol and unit of the prefix centi
c
1 × 10^-2
What is the symbol and unit of the prefix deci
d
1 × 10^-1
What is the symbol and unit of the prefix kilo
k
1 × 10³
What is the symbol and unit of the prefix mega
M
1 × 10^6
What is the symbol and unit of the prefix giga
G
1 × 10^9
What is the symbol and unit of the prefix tera
T
1 × 10^12