Units and prefixes Flashcards
1
Q
Multiplication factor
10⁹
What is the prefix and symbol?
A
giga
G
2
Q
Multiplication factor
10⁶
What is the prefix and symbol?
A
mega
M
3
Q
Multiplication factor
10³
What is the prefix and symbol?
A
kilo
k
4
Q
Multiplication factor
10-²
What is the prefix and symbol?
A
centi
c
5
Q
Multiplication factor
10-³
What is the prefix and symbol?
A
milli
m
6
Q
Multiplication factor
10-⁶
What is the prefix and symbol?
A
micro
µ
7
Q
Multiplication factor
10-⁹
What is the prefix and symbol?
A
nano
n
8
Q
A burger contains 4 500 000 J of energy. Write this in:
a) kilojoules
b) megajoules
A
a 1 kJ = 1000 J, so 4 500 000 J = 4 500 000/1000 kJ = 4500 kJ 2 1 m = 109 nm (there are a billion nanometre in a metre)
b 1 MJ = 1000 kJ, so 4500 kJ = 4.5 MJ
