10 Common mistakes when using a microscope

Interactive Video
•
Biology
•
9th - 12th Grade
•
Hard
Cubby Science
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it recommended to start microscopy with a low-power objective?
To prevent damage to the high-power objectives.
To achieve a higher magnification immediately.
To easily focus and center the specimen due to a larger depth of field.
To reduce the amount of light entering the microscope.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common issue when the specimen is not centered on the microscope slide?
The image appears too bright.
The specimen cannot be found or is partially visible, often showing the slide label instead.
The microscope's light source will flicker.
The objective lens will become scratched.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of starting microscopy with the condenser fully open?
It increases the depth of field, making focusing easier.
It provides maximum contrast for detailed viewing.
It reduces contrast and decreases the depth of field, making focusing difficult.
It protects the objective lenses from damage.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary risk of using immersion oil with a "dry objective" (non-oil objective)?
It will make the image appear blurry.
It can permanently damage the objective lens.
It will cause the specimen to dry out quickly.
It will increase the magnification beyond its intended limit.
5.
MULTIPLE CHOICE QUESTION
30 sec • Ungraded
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6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a potential consequence of using mounting medium instead of immersion oil with a microscope objective?
The objective may become damaged.
The image clarity will significantly improve.
The slide will be easier to clean after use.
The lifespan of the objective will be extended.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it advised to avoid using the coarse focus knob with high-power objectives?
It can cause the objective to crash into and damage the specimen slide.
It makes the specimen appear too bright, hindering observation.
It is exclusively designed for low-power magnification.
It can lead to the microscope overheating.
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If focus is lost while observing a specimen, what is the recommended method to regain it efficiently?
Rotate to a low-power objective and use the coarse focus knob.
Rapidly spin the fine focus knob in both directions.
Adjust the light intensity to make the specimen clearer.
Remove and clean the objective lens.
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of the condenser diaphragm on a microscope?
To control the contrast and depth of field.
To adjust the overall brightness of the light source.
To fine-tune the focus of the image.
To change the magnification level.
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