Microscope Quiz

microscope

device to enlarge a small object

specimen

object being enlarged

eyepiece

magnifies object 10x

objective lenses: low power = ?

4x

objective lenses: medium power = ?

10x

objective lenses: high power = ?

100x

total magnification = ?

eyepiece x objective lens

arm

on the side of the microscope; is used to support it when it is carried

base

the bottom part of the microscope

body

connects the eyepiece to the objectives

coarse adjustment knob

moves the stage up and down to help you get the specimen into view

diaphragm

helps you adjust the amount of light that reaches the specimen

eyepiece

allows you to view the image on the stage and contains the ocular lens

fine adjustment knob

moves the stage slightly to help you sharpen or fine tune your view of the specimen

nosepiece

holds the objective lenses and is able to rotate to change magnification

objective lenses

found on the nosepiece and range from low to high power

stage

part of the microscope that supports the slide that is being viewed

stage clips

used to hold a slide in place on the stage

1.

body

2.

nosepiece

3.

objective lenses

4.

stage clips

5.

stage

7.

diaphragm

8.

eyepiece

9.

arm

10.

coarse adjustment knob

11.

fine adjustment knob

12.

base

STEP #1:

Carry with TWO hands (one base; one arm)

STEP #2:

Turn the power switch on

STEP #3:

Switch to low power objective by moving the nosepiece

STEP #4:

Turn diaphragm if light doesn’t shine through

STEP #5:

Turn coarse adjustment knob to move stage to lowest point

STEP #6:

Place specimen on slide

STEP #7:

Place slide clips on top of slide

STEP #8:

Turn coarse adjustment knob to focus image

STEP #9:

Turn fine adjustment knob to focus image even more

STEP #10:

LOWER STAGE before switching objective lens