Unit 3: microscopes Flashcards
the part of the microscope you look through
the ocular lense
the part of the microscope you put the slide on
the stage
the part of the microscope that adjusts the magnification
the objective lenses
the part of the microscope that adjusts the amount of light getting through
the diaphragm
The big knob on a microscope is called _______.
the coarse adjustment knob
The small knob on a microscope is called _______.
the fine adjustment knob
how to carry a microscope
by the arm AND base
How do you get a slide focused under high magnification?
Start on scanning, focus with the coarse adjustment knob, find the object, center it.
Switch up to low power, focus with the coarse adjustment knob, center it.
Switch up to high power, focus with the fine adjustment knob.
how to store a microscope
scanning lens in place, cord wrapped up
Why is the image dimmer under high magnification?
Less light hits a smaller space.
Why are wet mounts better than dry mounts?
The water makes the cover slip stick to the slide, squeezing your specimen into one layer.
Where should you look for the diaphragm on a microscope?
under the stage
What are 4 ways a microscope changes an image?
Magnified
Flipped upside down
Flipped over right/left
brighter / dimmer
What do you use to clean a dirty lens?
lens paper
