8.3 Other Mass Units Flashcards
1
Q
What are the 2 other mass units I have to know?
A
the unified atomic mass and MeV/c^2
2
Q
What is the unified atomic mass of carbon
A
12u
3
Q
What is the value of 1u (unified atomic mass) in kilograms?
A
1.66x10^-27kg
4
Q
What does MeV/c^2 come from? - equation
A
m = e/c^2 - einstein equation
5
Q
How to change kg to Mev/c^2
A
Work out energy transferred over that mass
Divide this energy by 1eV
Divide by 10^6
6
Q
How to change MeV/c^2 to kg?
A
Multiply by 10^6
Multiply by 1eV
Divide by c^2
7
Q
What is an electronvolt?
A
Energy gained by an electron per unit charge when accelerated through a pd of 1V.
8
Q
What is the value of 1 electronvolt?
A
1.6x10^-19
9
Q
How to change kg to unified atomic mass?
A
Divide by 1.66x10^-27
10
Q
How to change unified atomic mass to kg?
A
Multiply by 1.66x10^-27
