Exploring Microscope Parts and Functions

Which part of the microscope is used to hold the slide in place?

• Objective lens

• Stage clips

• Eyepiece

• Coarse focus knob

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DOK Level 1: Recall

What is the primary function of the objective lenses on a microscope?

• To illuminate the specimen

• To magnify the specimen

• To hold the slide

• To adjust the focus

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DOK Level 1: Recall

Describe the process of using the coarse focus knob on a microscope.

• It is used to fine-tune the focus of the specimen.

• It is used to move the stage up and down to bring the specimen into general focus.

• It is used to adjust the light intensity.

• It is used to change the objective lenses.

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DOK Level 2: Skill/Concept

Explain why it is important to start with the lowest power objective lens when using a microscope.

• It provides the highest magnification.

• It is easier to locate the specimen.

• It prevents damage to the slide.

• It provides the clearest image.

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DOK Level 2: Skill/Concept

Which part of the microscope is responsible for adjusting the amount of light that reaches the specimen?

• Diaphragm

• Condenser

• Objective lens

• Eyepiece

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DOK Level 1: Recall

What is the function of the fine focus knob on a microscope?

• To move the stage up and down

• To change the objective lenses

• To fine-tune the focus of the specimen

• To adjust the light intensity

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DOK Level 1: Recall

How would you clean the lenses of a microscope to ensure they are not damaged?

• Use a dry cloth

• Use lens paper and lens cleaning solution

• Use water and a paper towel

• Use a tissue

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DOK Level 2: Skill/Concept

Why is it important to cover the microscope when it is not in use?

• To keep it warm

• To protect it from dust and debris

• To prevent it from being stolen

• To keep the lenses clean

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DOK Level 2: Skill/Concept

A student observes a specimen under a microscope and notices that the image is blurry. What steps should the student take to improve the clarity of the image?

• Increase the light intensity

• Adjust the coarse focus knob, then the fine focus knob

• Change the objective lens to a higher power

• Move the slide to a different position

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DOK Level 3: Strategic Thinking

If a microscope has an eyepiece lens of 10x magnification and an objective lens of 40x magnification, what is the total magnification?

• 50x

• 400x

• 100x

• 4x

Tags

DOK Level 1: Recall