calculating magnification Flashcards
1
Q
how many millimetres are in a meter?
A
1000
2
Q
how many nanometres are in a millimetre
A
3000
3
Q
how many micrometres are in a metre
A
2000
4
Q
what is the formula for magnification?
A
I/A=M
5
Q
a plant cell in a photograph measures 15mm across. if the actual size of the cell is 0.015, what is the magnification in the photograph?
A
1000
6
Q
the actual size of a woodlouse is 0.4mm but Sophie drew it 5mm long. what is the magnification?
A
12.5
7
Q
what is the formula for working out an image size?
A
A*M=I
8
Q
what is the formula for working out the actual size?
A
I/M=A
