Key Concepts in Biology

Question 1

How do you find the magnification of a microscope?

Answer 1

eyepiece lens x objective lens

Question 2

What is 1150000 in standard form?

Answer 2

1.15 x 10 to the power of 6

Question 3

What is 7 x 10 to the power of -8 in numbers?

Answer 3

0.00000007

Question 4

What is the equation for percentage change in mass?

Answer 4

perecentage change in mass = (final mass - initial mass) / initial mass
x 100

Question 5

How do you convert micrometers to millimeters?

Answer 5

divide by 1000

Question 6

How do you convert millimeters to micrometers?

Answer 6

x 1000

Question 7

What is 10 millimeters in micrometers?

Answer 7

10,000 micrometers

Question 8

What is the magnification of a microscope with a x5 eyepiece lens and a x10 objective lens?

Answer 8

x50

Question 9

What is the equation for the image size?

Answer 9

Image size = Actual size x Magnification

Question 10

What is the actual size of the image if the magnification is x7 and the image size is 20mm?

Answer 10

2.9

Question 11

What is the saying to remember the image size triangle?

Answer 11

I = A x M

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