Microscope Calculation Quiz Name: Block:

1) A person using a microscope with an ocular lens of 5X and an objective lens of 10X views some protozoa. What is the total magnification of the microscope?

A) Formula = occular x objective

B) Calculation 5 x 10 = 50x

2) You are using your microscopes from class. You measure the low power field of view and get 5mm.How many is this? use the unit conversion of mm to micrometers (microns)

A) formula______________ 5mm x 1000µ

B) calculation

3) What is the field of view under your medium (classroom microscopes) power based on question 2?

a) Formula

b) calculation

4) This is the actual view of a bacterium under high power. The field of view is 0.5 mm.What is the actual size of this organism?

a) Formula

b) Calculation

5) If the actual size of an organism is 0.5 mm, and you drew a diagram of it below, what is the drawing magnification?

a) Formula

b) Calculation

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Your drawing (2 cm)

6) Using your microscope (field of view 4.5 mm under low power), you draw the following diagrams. Calculate the following.

a) high power field of view.b) Actual size.c) Drawing magnification.

Actual view high power drawing.

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¼ field of view

5 cm

10 40 4

10

A

B C D

E

F

G

H

I J K L M

N

LABEL THE PARTS!A BODY TUBE

NBASE

J LOW OBJECTIVE

C HIGH OBJECTIVE

G COARSE ADJUSTMENT

E OCCULAR / EYE PIECE

D STAGE CLIPS

H FINE ADJUSTMENT

M LIGHT

K STAGE