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- 1When transporting the microscope, how should you carry it?Close to your body with one hand on the arm and the other on the base
- 2What are the steps to getting it ready for use?1. remove dust cover
2. plug it in
3. arrange the excess cord in a manner that will prevent your from tripping on it and knocking over the microscope - 3Which power objective should you start with?the lowest which is usually 4X since:
1. it is easiest to focus on a lower power.
2. it has the shortest objective lens so there is less chance of scratching the lens when situating and removing the slide - 4What is the part that you look through called?the eyepiece lens located at the top of the microscope
- 5What are the usual powers of the eyepiece lens?10X or 15X
- 6What part connects the eyepiece to the objective lenses?tube
- 7What is the tube?It connects the eyepiece to the objective lenses
- 8What part supports the tube and connects it to the base?arm
- 9what is the arm?It supports the tube and connects it to the base
- 10What is the steady light source used in place of a mirror?illuminator
- 11what is the illuminator?the steady light source (110 volts) used in place of a mirror
- 12If a microscope has a mirror, how does it illuminate?It is used to reflect light from an external light source up through the bottom of the stage
- 13What is the nosepiece or turret?the part that holds tow or more objective lenses and can be rotated to easily change power
- 14what part holds two or more objective lenses and can be rotated to easily change powerrevolving nosepiece or turret
- 15What is the part where you place your slides?the stage
- 16what is the stage?the flat platform where you place your slides
- 17how do the slides stay in place on the stage?Stage clips hold the slides in place
- 18what is a mechanical stage?the platform where you place your slides that can move the slide around my turning two knobs - one moves it left and the other moves it right
- 19What are the powers of the objective lenses?Usually, you will find 3 or 4 objective lenses on a microscope - 4x, 10x 40X and 100X
- 20How do you figure out the total magnification?eyepiece power times objective lenses:
10 x 4 = 40
15x10=150 - 21what do you call the part that holds 2 or more objective lenses and can be rotated to easily change the power?revolving nosepiece of turret
- 22what is the revolving nosepiece or turret?the part that holds two or more objective lenses that can be rotated to easily change power
- 23What part is an adjustment that determines how close the objective can get to the slide?rack stop
- 24what is the rack stop?an adjustment that determines how close the objective lens can get to the slide. Since it is set as at the factory and keeps the student from cranking the high power objective lens into the slide and breaking it, you would only need to adjust this if you were using very thin slides and weren't able to focus on the specimen at high power
- 25what is the rotating disk under the stage that has different sized holes used to vary the intensity and size of the cone of light that is projected upward into the slide?diaphragm or iris
- 26what is the diaphragm or iris?the rotating disk under the stage that has different sized holes used to vary the intensity and size of the cone of light that is projected upward into the slide
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- (use of the microscope) Honors Biology Fichas sobre Untitled_1, creado por mary1327 el 23/09/2013.
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