Question

task 1: fill in the blanks

1. the ______________ turns on the light.
2. if the eyepiece is 10x and the objective lens is 4x, then the total magnification is ______ x.
3. the ______________ adjustment knob allows for more precise focusing on the specimen.
4. the ______________ has a hole in its center to allow light to reach the specimen slide.
5. another term for eyepiece is ______________.
6. another term for body tube is ______________.
7. the objective lenses are attached to the ______________.
8. the ______________ provide options for magnification.
9. the 4x magnification objective lens is usually the ______________ power lens.
10. the ______________ connects the lens system to the stage and base.
11. the ______________ power objective lens offers the most amount of magnification.
12. ______________ hold the slide to the stage.
13. when transporting the microscope, one hand should be on the arm and one hand under the ______________.

Explanation:

1. The light source (such as a lamp) turns on the light in a microscope.
2. Total magnification of a microscope is the product of eyepiece and objective - lens magnifications. So, $10\times4 = 40$.
3. The fine - adjustment knob allows for more precise focusing.
4. The stage has a hole (aperture) to let light reach the specimen slide.
5. Another term for eyepiece is ocular.
6. Another term for body tube is drawtube.
7. Objective lenses are attached to the nosepiece.
8. Objective lenses provide different magnification options.
9. The 4X objective lens is usually the low - power lens.
10. The arm connects the lens system to the stage and base.
11. The high - power objective lens offers the most magnification.
12. Stage clips hold the slide to the stage.
13. When transporting a microscope, one hand on the arm and one under the base for support.

Answer:

1. light source
2. 40
3. fine
4. stage
5. ocular
6. drawtube
7. nosepiece
8. objective lenses
9. low
10. arm
11. high
12. Stage clips
13. base