Magnification and calibration - 2.2 (2)

Question 1

If the actual size of the object isn’t known but the magnification is known, how can the actual size be calculated?

Answer 1

by rearranging the formula

Question 2

What would the formula be to find out the actual size of the object?

Answer 2

actual size of object = size of image / magnification

Question 3

What is the formula to find out the size of the image?

Answer 3

size of image = actual size of object / magnification

Question 4

When doing magnification calculations, what equipment must you need?

Answer 4

a ruler, calculater and pen

Question 5

When doing calculations, what should you consider?

Answer 5

all measurements must be in the same units

Question 6

Should you use the smallest unit of measurement?

Answer 6

yes

Question 7

Does magnification have units?

Answer 7

no

Question 8

To convert a metre to mm, what do you need to multiply by?

Answer 8

x1000

Question 9

To convert back a mm to metre, what do you need to divide by?

Answer 9

/ 1000

Question 10

To convert mm to micrometres, what do you need to multiply by?

Answer 10

x1000

Question 11

To convert micrometre to mm, what do you need to divide by?

Answer 11

/ 1000

Question 12

To convert micrometre to nanometre, what do you need to multiply by?

Answer 12

x1000

Question 13

To convert nanometre to micrometre, what do you need to divide by?

Answer 13

/1000

Question 14

1) To find out what the magnification is in a question, what must you do first?

Answer 14

check that the units in the magnification question are the same

Question 15

2) After checking if the units in the question are the same, what do you do after?

Answer 15

calculate the magnification

Question 16

Should you measure the image in a magnification question with a ruler?

Answer 16

yes