lab review 2

If the amount of light passing through the condenser needs to be decreased, what microscope part should be adjusted?

diaphragm control lever

What is the name for the lenses located near the eye?

eyepiece lenses

If a slide is being viewed with the high-power objective, which adjustment knob should be used to sharpen the focus?

fine-adjustment knob

To properly measure 20 ml of water, what must be at the 20 ml mark of the graduated cylinder?

meniscus

What word describes a microscope that remains in focus when the objective lenses are changed?

parfocal

If threads are layered from top to bottom, brown, green, red, which layer will come into focus first if you are using the microscope properly?

red

What kind of microscope would be used to study a whole or opaque object?

stereomicroscope

90°F equals how many degrees Celsius?

32°C

3.4 l equals how many ml?

3400 mL

If the total magnification of a slide is 400× and the ocular lenses are 10×, what is the magnifying power of the objective being used?

4,000

Which objective should be in place when the microscope is put away?

4x (scanning) 10x(low power)

880 mm equals how many m?

8.8 m

19 mm equals how many cm?

1.9 cm

2,700 mg equals how many grams?

2.7 g