Shared Flashcard Set

Details

microscope
parts and functions
19
Science
7th Grade
08/16/2009

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Cards

Term
function of microscope
Definition
to see objects we can't see with our naked eye
Term
eyepiece
Definition

1. found on top of microscope

2.it magnifies 10x

Term
eye tube and body tube
Definition
both parts hold light conducted from light source
Term
10x objective/low power
Definition
magnifies 10x
Term
high power objective
Definition
magnifies 40,43,45x
Term
revolving nosepiece
Definition
allows one to turn the objectives into position
Term
stage
Definition
that part that holds the slide
Term
stage clip
Definition
that part which holds the slide in place on the stage
Term
condenser
Definition
a small piece located under the stage which brings the light rays together from the light source
Term
diaphragm
Definition
that part which regulates the amount of light entering the object
Term
light source/mirror
Definition
provides light needed to see magnified object
Term
base and arm
Definition
both these parts suppot the microscope
Term
inclination joint
Definition
allows you to tilt the microscope
Term
coarse adjustment knob
Definition

allows you to bring the object into focus

it is a large knob

Term
fine adjustment knob
Definition
small knob which allows a sharper view of the object
Term
how does one determine magnification
Definition

multiply the eyepiece x the objective

10 x 10 = 100x

40 x 10 =400x

Term
how does one hold a microscope
Definition
one hand on the arm and one under the base
Term
how do you use the microscope
Definition

carry to desk

remove cover,fold,put into desk

set in center of desk

tilt microscope at 45 degree angle

open diaphragm fully

click low power objective into place

find light

place slide on stage

use coarse adjustment to focus object

click high power into place

focus using fine adjustment

when done raise objectives,remove slide,turn revolving nosepiece,lower body tube,untilt and cover

 

Term
how do you clean the lens
Definition
use only lens paper
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