Understanding the Microscope

Identify the parts of the microscope used to change magnification.

Identify the parts of the microscope used to focus the microscope.

Identify the light source for the microscope.

When setting up a microscope, the specimen should be on a_​ (a)   , which is placed on the ​ (b)   and secured (held) in place with the​ (c)   .

• slide
• stage
• stage clips
• diaphragm
• base
• arm
• coarse adjustment knob
• slide cover

What is the role of the coarse focus knob on a microscope?

• To adjust the light intensity

• To move the stage up and down for focusing

• To change the objective lenses

• To hold the slide in place

What is the purpose of the stage clips on a microscope?

• To magnify the specimen

• To hold the slide in place

• To adjust the focus

• To change the objective lens

Describe the process of properly focusing a specimen under high power on a microscope.

• Start with the coarse focus knob, then use the fine focus knob

• Start with the fine focus knob, then use the coarse focus knob

• Only use the coarse focus knob

• Only use the fine focus knob

The greater the ___________________, the smaller the field you are actually viewing.

• detail

• objective

• magnification

• body

What will be the total magnification if ocular lens is 10X and objective lens is 4X?

• 4X
• 40X
• 10X
• 100X

What will be the total magnification if the ocular lens is 10X and the objective lens is 40X?

• 40X
• 10X
• 100X
• 400X