QUIZ: Microscope

Question 1

What does the ocular tube (body tube) do?

Answer 1

Keeps proper distance between ocular lens and objective lenses.

Question 2

What does revolving nose piece do?

Answer 2

Contains and changes objective lenses.

Question 3

What does low power objective do?

Answer 3

Magnifies 4x

Question 4

What does medium power objective do?

Answer 4

Magnifies 10x

Question 5

What does high power objective do?

Answer 5

Magnifies 40x

Question 6

What do stage clips do?

Answer 6

Holds slide in place.

Question 7

What does the diaphragm do?

Answer 7

Regulates light.

Question 8

What does the light source do?

Answer 8

Provides light.

Question 9

What does the ocular lens (eyepiece) do?

Answer 9

Magnifies 10x

Question 10

What does the arm do?

Answer 10

Supports upper part of microscope over stage.

Question 11

What does the stage do?

Answer 11

Supports slide/specimen.

Question 12

What does the coarse adjustment knob do?

Answer 12

Moves stage up and down a lot to find specimen.

Question 13

What does the fine adjustment knob do?

Answer 13

Moves stage slightly to sharpen focus.

Question 14

What does the base do?

Answer 14

Supports microscope.

Question 15

What is the conversion ratio of mm to um?

Answer 15

1mm = 1000um

Question 16

What is the low field of power in mm and um?

Answer 16

4.5mm
4500um

Question 17

What is the medium field of power in mm and um?

Answer 17

1.8mm
1800um

Question 18

What is the high field of power in mm and um?

Answer 18

0.45mm
450um

Question 19

What is the oil field of power in mm and um?

Answer 19

0.18mm
180um

Question 20

How do you find the actual size of a specimen?

Answer 20

Field of power in um divided by the number on times the specimen crosses the field (always counted from longest side).

Question 21

How do you find the drawing magnification?

Answer 21

The drawing size in mm divided by the actual size in mm.

Question 22

What is the change in orientation when looking through the microscope?

Answer 22

The specimen is inverted (flipped upside down).

Question 23

Can you see more or less of your specimen as you change from low to high magnification?

Answer 23

When you increase magnification you see less of the overall specimen, but more detail.

Question 24

When you move the slide on the stage what do you see through the microscope?

Answer 24

It is the opposite. When moved left, through the microscope it moves right, and vice versa. When moved up, through the microscope it moves down, and vice versa.

Question 25

Does the diameter field increase, decrease or remain the same as you go from low to high power?

Answer 25

The diameter field decreases as we turn up the power. It increases as we turn down the power. We see more details, but less of the entire image when using higher power.

Question 26

How does the depth of field change as you go from low to high power?

Answer 26

As you turn up the magnitude the depth decreases. As you turn down the magnitude the depth increases.

Question 27

What happens to the intensity of light as you change the magnification from low to high?

Answer 27

When we increase the magnification the light dims.

Question 28

What is an advantage for viewing an object in a lower magnification?

Answer 28

You can see more of the entire object.

Question 29

What is an advantage for viewing an object in a higher magnification?

Answer 29

You can see more details of the object.

Question 30

Acronym for microscope labels.

Answer 30

O O R A P's S S C D F L B