PARTS OF MICROSCOPE

Question 1

Contains mirrors and
allows the body tube to
rotate 360°.

Answer 1

Rotating head

Question 2

Passes light
from the head t0
the eyepiece.

Answer 2

Body tube

Question 3

Objectives produce most
of the magnification.
The high-power lens
(blue stripe) magnifies
40x and the low-power
lens (yellow stripe)
magnifies 10x.

Answer 3

Objective lens

Question 4

Holds the slide and
contains an opening
that allows light to
pass through the
specimen on its way
to the objcctive.

Answer 4

Stage

Question 5

Rotating dial that
controls the passage
oflight through the
stage. Numbers on
the dial indicate the
relative amount of
light passing, with
“S” being the most
and “1” being the
least.

Answer 5

Diaphragm

Question 6

Supports the microscope and
contains the electronics. The
microscope: should be carried
with one hand under the base
and the other holding the arm.

Answer 6

Base

Question 7

where one
views the enlarged object.
It contains a lens called the
ocular that further magnifies
the specimen by 10x.

Answer 7

Eyepiece

Question 8

Supports the lenses,
mirrors, and body tube.
The microscope should
be carried with one hand
holding the arm and the
other under the base.

Answer 8

Arm

Question 9

Moves the stage up and
down quickly. Used to
find a specimen when
using the low power
objective.

Answer 9

Coarse focus knob

Question 10

Used to make small
focus adjustments, esp
when using the high
power objective.

Answer 10

Fine focus knob

Question 11

illuminates the
specimen by shining bright light
through it.

Answer 11

Light source

Question 12

Turns the light on
and off.

Answer 12

Power switch