Calculations

Question 1

using a scale bar

Answer 1

scale length divided by ruler length

• measure the length of the scale (in mm)
• measure the length of the organism (mm)
• divide the length of the organisms by the length of the scale line
• multiply your answer by the number on the scale line
• round off to 2 decimal places

Question 2

the triangle :)

Answer 2

AS = IS divided by M
M = IS divided by AS
IS = AS multiplied by IS

Question 3

finding magnification

Answer 3

measure the image size (mm)
convert it in to micrometer (x1000nm)
divide your answer by the actual size