MICROSCOPE (SCIENCE) Flashcards
reflects light up to the viewer’s eye. Houses the eyepiece
Body tube
use to rotate and shift into different objectives. Also where the objectives are attached and allows them to position in the reference to the slide on the stage.
Revolving Nosepiece
is the First objective lens used in doing microscope, usually 4-10X in Magnification
Low Power Objective (LPO)
is the Second objective lens used in doing microscope focusing Usually in 10X - 40X in Magnification
Middle Power Objective (MPO)
is the Third and highest magnification used.
High Power Objective (HPO)
Should you use the coarse adjustment knob when using the HPO LENS?
No
are used to keep the slide in place
Stage Clip
is used to vary the amount of light passing through the slide. It is usually better if the amount of light is low.
Diaphragm
is the source of light in the microscope
Light Source
is the part you look at with your eye
Eyepiece
used to safely hold/transfer the microscope
Arm
are where the slides are placed for observing purposes
Stage
is used to make images larger. It adjusts the distance between the objective lens and the stage.
Coarse Adjustment Knob
is used to make a smaller and finer image
Fine Adjustment Knob
is used to safely put the microscope in place and make it stable/supports the whole microscope.
Base
Who made the first microscope?
Zacharias Jansen
What are the two types of microscope?
Light Microscope
Electron Microscope
is when the lenses bend, or refract light which makes the object beneath them appear closer, it can magnify up to 2000 times, and it is two dimensional images. Relatively inexpensive, and can view living organisms.
Light Microscope
use electrons which are negatively charged electrical particles to view the specimen.
Electron Microscope
What are the types of electron microscope?
- Scanning Electron Microscope
- Transmission Electron Microscope
allows scientists to view objects in 3D SEMs magnify objects up to 50,000X, non living specimens.
Scanning Electron Microscope
is when electrons pass through very thin specimens whose objects magnify up to 250,000X. It is two dimensional and non living specimens
Transmission Electron Microscope
is often used for lower magnification on large subjects.
Stereo Microscope
are curved glasses used to make microscopes, they bend light and focus it in one spot. These lens are also used in the COMPOUND MICROSCOPE.
Convex lens
What happens to the light when it magnifies the image in a compound microscope.
Refracts/Refraction
How many lenses are used to magnify the image in a compound microscope.
Two
