Part 4: Magnification and Resolution

Question 1

Explain why you need a microscope to see most cells

Answer 1

Because most cells can not be seen with the naked eye

Question 2

Explain why bacteria couldn’t have mitochondria

Answer 2

Mitochondria can be bigger or the same size than a bacteria cell so it wouldn’t fit

Question 3

Write down the magnification equation

Answer 3

Magnification= image size/actual size

Question 4

What does EUSAC stand for?

Answer 4

Equation
Units
Substitute
Arrange
Calculate

Question 5

An object is magnified 1000 times, and the image width is measured as being 1cm. What is the actual size if the object in mm?

Answer 5

E Magnification= image size/actual size
U 1cm= 10mm
S x1000= 10/actual size
A 10mm/x1000
C 0.01mm

Question 6

1mm=____m

Answer 6

0.001m

Question 7

1µm=_____mm

Answer 7

0.001mm

Question 8

1nm=______µm

Answer 8

0.001µm

Question 9

An object of 540µm is magnified 3500 times. What is the size of the image in mm?

Answer 9

Image size= actual size x magnification
540µm= 0.54mm
0.54x3500= 1890mm