Microscope Quiz

A student observes an onion cell with a microscope first using low and then high power. Both views are shown here. The best explanation for the changes observed by the student is that, when switching from low to high power, the:

• The field of view decreases (Zoom in)

• The slide was moved out of the center

• The field of view increases (Zoom out)

• The image is upside down & backwards

Which diagram represents where the cell should be located in the low-power field of view to ensure that the entire cell is visible after switching to high power?

• 1

• 2

• 3

• 4

Which 2 letters show the parts of the microscope that are adjusted then trying to make an image more clear (less blurry)?

• A (ocular) & F (arm)

• B (nose piece) & G (stage)

• H (coarse adjustment) & I (fine adjustment)

• J (diaphragm) & K (light)

If you were viewing a sample using the microscope as shown here, what would be the total magnification?

• 10

• 100x

• 400x

• 40

A student sees the image shown below when looking at the letter 'f' with the low-power objective lens of a microscope. Which of the four diagrams below most closely resembles the image the student will see after switching to high power?

• A

• B

• C

• D

What is the name of the piece of glass that is put on top of your specimen?

• Slide

• Specimen

• Cover Slip

Which part of the microscope is used to allow more light to your specimen?

• Ocular

• Coverslip

• Diaphragm

• Arm

• Base

What is the proper name of the circle of light you see when you look in the microscope?

• Total Magnification

• Objective Lens

• Diaphragm

• Field of View

Which is the correct sequence you should follow when focusing the microscope?

1.  Change to the high-power lens and focus with the fine adjustment

2.  Focus on scanning-power using the coarse adjustment

3.  Change to the low-power lens and focus with the coarse adjustment 

 

     

• 1, 2, 3

• 3, 2, 1

• 2, 3, 1

What should you always do at each step when focusing the microscope?

• Center your specimen

• Remove the slide

• Unfocus your microscope

• Turn off the light