Microscope Quiz

Choose all that apply. Which of the following are correct when using a microscope?

• Carry the microscope with one hand on the arm and the other on the base.

• Always start with the high power objective lens.

• Never use the fine adjustment knob with the high power objective lens.

• Look through the eyepiece while focusing.

Mrs. Taylor wants her class to study cells. Which tool from the following list will help them observe cells?

• Telescope

• Microscope

• Triple-Beam Balance

• Hand-held magnifying glass

The adjustment knobs are located on the side of the microscope. The smaller one is always the _____________________ adjustment knob.

• high

• low

• fine

• coarse

The amount of light that reaches the specimen on a slide is controlled by the ______________________________.

• diaphragm

• mechanical stage clip

• revolving nose piece

• objective lens

When you increase the magnification of a microscope, you will view

• more of the total object.

• less of the total object.

• about the same amount of the total object.

• none of the total object.

What is the total magnification of an onion skin if the eyepiece is 10x and the objective is 2x?

• 8x

• 12x

• 5x

• 20x

Which of the following is NOT a scientific observation?

• Sara saw that the soil was dark brown.

• Sara counted the number of days it rained.

• Sara thinks the soil is too dry to grow plants.

• Sara's thermometer showed that the temperature is 25 degrees Celsius.

Students compete in a short race at a track meet. Which of the following is an example of a qualitative observation?

• The distance ran by a student in meters.

• The time passed from start to finish in seconds.

• The heart rate of a student in beats per second.

• The color of the students' faces as they ran.

Handling a microscope correctly involves:

• Always carrying the microscope with one hand.

• Sometimes allowing the objective to touch the stage.

• Focusing by moving the stage away from the objective.

• None of the above.

You decide to use only the highest power objective to examine microbes under the microscope. A trade off of your decision is that:

• It may be harder to find microbes.

• You can only see a smaller section of the slide.

• Both of the above.

• None of the above.