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Science Quiz
| Question | Answer |
|---|---|
| Microscope | an instrument that produces an enlarged image of an object |
| Lens | an optical device that refracts (Bends) light to form images |
| Simple microscope | a microscope with one lens |
| Compound light microscope | named because they use two or more lenses to magnify objects. Highest possible magnification is 1,000X We use a microscope of 400 x |
| Electron Microscope | Do not use lenses to direct light; they use electrons (negatively charged electrical particles) to magnify objects up to 2,000,000X!!! allow scientists to view things too small to be seen with a light microscope. Used to observe atoms and molecules |
| Eyepiece Lens | the lens at the top that you look through. |
| Body Tube | Connects the eyepiece to the objective lenses. |
| Objective Lenses | Usually you will find 3 objective lenses on a microscope. They almost always consist of 4X, 10X, 40X - magnify objects/specimens |
| Nosepiece | This is the part that holds the objective lenses and can be rotated to change power. |
| Base | The bottom of the microscope, used for support. |
| Arm | Supports the tube and connects it to the base |
| Light source | found near the base of the microscope; makes the specimen easier to see. |
| Stage | The flat platform where you place your slides. |
| Stage clips | found on the stage; hold the slides in place. |
| Diaphragm | rotating disk under the stage; different sized holes vary the intensity and size of light that is projected upward into the slide. |
| Coarse adjustment knob | large, round knob on the side of the microscope used for focusing the specimen; it moves the stage up and down. |
| Fine adjustment knob | small, round knob on the side of the microscope used to fine-tune the focus of your specimen after using the coarse adjustment knob. |
| Magnification | is the process of enlarging something only in appearance, not in physical size |
| Field of View | The area of the slide that you see when you look through a microscope; it is the circle of light. |
Created by:
aleahy004
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