Mastering the Microscope: A Quiz on Parts, Safety, and Use

What is the part of the microscope you look through to see the sample?

• Arm

• Ocular Lens

• Base

• Objective Lens

Which part of the microscope holds the objective lenses and is able to rotate to change magnification?

• Revolving nosepiece

• Stage

• Coarse adjustment knob

• Condenser

What is the purpose of the coarse adjustment knob?

• To adjust the brightness of the light

• To move the stage up and down for focusing

• To fine-tune the focus on the specimen

• To change the magnification of the objective lenses

Which microscope part controls the amount of light reaching the specimen?

• Base

• Eyepiece

• Diaphragm

• Objective lens

What safety precaution should be taken when carrying a microscope?

• Carry with both hands, one on the arm and one on the base

• Carry by the eyepiece

• Drag it across the table to avoid lifting

• Carry it by the stage

Before putting the microscope away, what should you do?

• Leave the highest power objective lens in place

• Remove the slide and lower the stage

• Turn the light to its maximum brightness

• Leave the coarse adjustment knob fully raised

Which objective lens provides the highest magnification?

• Scanning objective lens

• Low power objective lens

• High power objective lens

• Oil immersion objective lens

How should you adjust the focus when using the high power objective lens?

• Using the coarse adjustment knob only

• Using the fine adjustment knob only

• Using both the coarse and fine adjustment knobs

• No adjustment is necessary

What is the correct way to clean the lenses of a microscope?

• Using a rough cloth

• Using lens paper

• Using a paper towel

• Blowing on them

Why is it important to start with the lowest power objective lens when viewing a new slide?

• It provides the highest resolution

• It makes it easier to locate the specimen

• It requires less light

• It is easier to focus on the specimen