Microscope Care + Use

Front

What should you do when you are finished using the microscope?

Back

Cover the microscope with the dustcover.

Front

How do you calculate the total magnification of a microscope?

Back

Multiply the magnification of the ocular lens by the magnification of the objective lens.

Front

What is the total magnification if the ocular lens is 10X and the objective lens is 4X?

Back

40X.

Front

What is the first step when looking at a specimen on a slide?

Back

Start with the low objective lens.

Front

What should you do after finishing your observation with the microscope?

Back

Rotate the objectives to the low-power (4X) objective and lower the stage.

Front

What is the function of the Course Focus Knob?

Back

Moves the stage up and down for focusing; locates the specimen.

Front

What is the purpose of the dust cover for a microscope?

Back

To protect the microscope from dust and debris when not in use.

Front

What is the difference between the ocular lens and the objective lens?

Back

The ocular lens is the lens you look through, while the objective lens is the lens that is closest to the specimen.

Front

Why is it important to start with a low objective lens?

Back

It provides a wider field of view and makes it easier to locate the specimen.

Front

What should you do if you cannot find the specimen under low power?

Back

Make sure the specimen is properly centered and adjust the focus.