1.4 All About Microscopes

For most compound light microscopes, the eyepiece (ocular) objective has a magnification of

• 1X
• 10X
• 100X
• 1000X

When using a microscope, the prepared slide is placed on

• the diaphragm
• the stage
• the objective
• the ocular lens

The amount of light on a specimen can be adjusted using the 

• rotating nosepiece
• the diaphragm
• the low power objective
• light switch

If a microscope has an ocular objective of 10X, and a high power objective of 50X is used, the total magnification is 

• 5X
• 50X
• 500X
• 5000X

When focusing at a low power, how should the user adjust the focus?

• Using the course adjustment knob
• Using the fine adjustment knob
• Using the rotating eyepiece until you find the right spot
• Move the slide up and down manually

When focusing at a high power, how should the user adjust the focus?

• Using the course adjustment knob
• Using the fine adjustment knob
• Using the rotating eyepiece until you find the right spot
• Move the slide up and down manually

When preparing a slide, the specimen should be

• thick
• thin
• invisible
• 4-dimensional

What type of microscope do we use in this science classroom?

• compound light microscope

• scanning electron microscope

• tunneling electron microscope

• magnifying glass

How many objectives do our microscopes have?

• 3

• 2

• 1

• 10

Which knob CANNOT be turned when observing a specimen using the high-powered objective?

• coarse adjustment

• fine adjustment

• nosepiece adjustment

• objective adjustment