NEW
Font size
WorksheetsFocus Specimen using a Microscope
Total questions: 20
Worksheet time: 15mins
Eyepiece = 10X
Objective lens = 4X
When you focus on a new specimen, always begin with
low power and coarse adjustment
low power and fine adjustment
high power and coarse adjustment
high power and fine adjustment
Eyepiece = 20X
Objective lens = 20X
Eyepiece = 15X
Objective lens = 100X
Which way should you move the slide to center the cheek cell?
to the right
to the left
up (away from you)
down (toward you)
The largest field of view shown is under the total magnification _____X.
40
100
400
The ________ of the microscope would give you the SMALLEST field of view.
low power objective
medium power objective
high power objective
stage
The __________ sharpens the image under high magnification.
the diaphragm
fine adjustment knob
coarse adjustment knob
the ocular
Use the _______ focuses the image under low power.
revolving nosepiece
fine adjustment knob
coarse adjustment knob
arm/neck
When looking through your microscope, if you move your slide to the right the slide appears
to move to the right
to stay the same
to move to the left
vanish
A microscope is an instrument that ______.
makes faraway objects look closer.
decreases the size of small objects.
makes small objects appear larger.
increases the size of small objects.
What happen if the stage is adjusted too closely to the lens causing contact?
The slide could be damaged
The lens could be damaged
The microscope housing could be damaged
All of the options are correct
A 10X lens is also known as what?
Scanning lens
High Power lens
Oil Immersion lens
Low Power Lens
What is immersion oil and why is it used?
Immersion oil is a cleaning solution used to smooth and polish the lens
Immersion oil is a special fluid used only with the 100X lens to refocus light resulting in an enhanced resolution image
Immersion oil is a medium used to hold the specimen in suspension
Calculate the total magnification: 5X eyepiece with a scanning objective.
25X
50X
20X
30X
For a total magnification of 100X, what eyepiece and objective would be used?
10X eyepiece with 10X objective
5X eyepiece with 100X objective
10X eyepiece with a 100X objective
If you move the slide left while viewing, in which direction will it appear to move?
right
left
up
down
