Microscopes

If you accidentally break a microscope slide, you should

• clean it up yourself
• try to hide it from the teacher
• tell the teacher immediately

You should always carry the microscope by the

• arm and base
• arm and body tube
• arm only

The diaphragm helps to

• focus
• allow light to pass through the stage
• change the lens size

When looking at a specimen on your slide, you should always start with the

• low objective lens
• medium objective lens
• high objective lens

When looking through your microscope, you move your slide to the right- It appears

• to move to the right
• to stay the same
• to move to the left

The _______focuses the image under low power.

• revolving nosepiece
• fine adjustment knob
• coarse adjustment knob

A compound light microscope will use _______ or more lenses at the same time.

• 1
• 2
• 3

The__________ sharpens the image under high magnification.

• revolving nosepiece
• fine adjustment knob
• coarse adjustment knob

You can find total magnification by which of the following methods?

• adding the eyepiece and the objective lens
• multiplying the eyepiece and the objective lens
• adding the eyepiece and all of the objective lenses
• multiplying the eyepiece and all of the objective lenses

Find total magnification for:
Eyepiece = 20X 
Objective lens = 20X  

• 20x
• 40x
• 200x
• 400x