Microscope Quiz Study Guide

How does a microscope lens work?

Convex lenses bend the light to make the object appear larger

What does resolution mean?

How sharp an image is

What did the invention of the microscope allow people to learn about and discover?

Cells

What type of lens is thicker in the center?

Convex

What is the function of the eyepiece?

The part of the microscope you look into and magnifies the specimen 10X

What is the function of the body tube?

Separates the eyepiece and the objective lens

What is the function of the nosepiece?

Holds the objective lenses and allows you to change them

What is the function of the high power objective lens?

Magnifies the specimen the most, 40X, longest objective lens

What is the function of the low power objective lens?

Magnifies the specimen the least, 4X, shortest objective lens

What is the function of the diaphragm?

Controls the amount of light passing through the opening in the stage

What is the function of the light source?

Supplies the light

What is the function of the stage?

Supports the slide being used

What is the function of the base?

Supports the microscope and is used to carry it

What is the function of the stage clips?

Hold the slide in place

What is the function of the arm?

Used to carry the microscope and holds the adjustment knobs

What is the function of the fine adjustment knob?

Sharpens the focus of the microscope and is used with all objective lenses

What is the function of the coarse adjustment knob?

Focuses the microscope and is only used with the low power objective lens

How do you focus the microscope while using the low power objective lens?

Use the coarse adjustment knob to get a rough focus and then use the fine adjustment knob to sharpen the image

How do you focus the microscope while using the medium or high power objective lens?

Only use the fine adjustment knob to sharpen the focus

What is the magnification for each lens in our microscope?

Eyepiece: 10X, Low Power Objective Lens: 4X, Medium Power Objective Lens: 10X, High Power Objective Lens: 40X

What is the total magnification for each objective lens?

Low Power Objective Lens: 40X, Medium Power Objective Lens: 100X, High Power Objective Lens: 400X

How do you carry a microscope?

With one hand on the arm and the other hand on the base