Microscope Flashcards
define objective lenses, how many?
3 lenses that are grouped as 1
define the base
supports whole microscope
what is low power? what is the magnification settings?
- magnifies things to the smallest power
- magnification of 4X
what is medium power? what is the magnification setting?
- magnifies things to middle power
- magnification of 10X
what is high power? what is the magnification setting?
- magnifies to the greatest power
- magnification 40X
what is the stage?
place where the microscope slides sit
what is the fine focus adjustment?
focuses for high power
what is the course focus adjustment?
focuses for low and medium power
what is the eyepiece?
lense closest to eye, magnification of 10X
what is the arm?
1 part of the microscope that is held to move it from place to place
what is the light source?
supplies the light needed for viewing
what are the slide clips?
small arms that hold the slide to the stage
what do microscopes let us do?
see small things
what is the smallest measurement? what is the measurement?
- nanometer
- 10^-9
the _____ microscope has an image that is light against a dark background. this makes ____ more visible
- dark field
- details
a beam of electrons is passed through an object with ____ microscope
transmission electron
the __ meter has a measurement of 10^-6
micrometer
the dutch scientist ____ was the first scientist to write a great deal about microscopic animals
An atom Leeuwenhoek
what microscope is usually used in schools?
bright field microscope
what microscope uses an organism’s ability to bend light as the light passes through it?
phase-contrast microscope
what microscope uses a stain or a liquid that passes through an object?
fluorescence microscope
being able to see the space between 2 objects is called _____
resolving power
with what microscope a beam of electrons sweeps over the surface of an object giving a realistic 3D image of the object?
scanning electron microscope
the number of times that an object is made larger is?
magnification
