Microscope Quiz BIO

How should your microscope be facing when putting it away?

Arm facing towards you

What should you do with the cord when putting away your microscope?

Loosely wrap/hang it around one or both eye pieces

Which magnification should the microscope be in to begin with?

4x Magnification

Where should the stage be when you first begin using the microscope?

In the lowest position

Which knob adjusts the stage using bigger movement?

Course focus knob

Before focusing on your field of view what should you do?

Use the course focus knob to raise the stage to the highest position

What should you do to begin focusing?

Look through eyepiece and slowly lower stage until the object is visible

What else can you do to focus on your object?

Use the fine focus knob

What are the different magnifications that we use?

4x 10x and 40x

When adjusting to different magnifications what should you always do?

Change magnification in sequence, while looking from the side of the microscope to make sure that the lens never touches the slide.

What should you never use in 10x and 40x?

The course focus knob

What should you do before changing your slide?

Switch to 4x and then lower the stage using the course focus knob

What are the different lens called on a compound microscope?

Objective lens

Can you adjust the light on your microscope and if so with what?

Yes, using the iris diaphragm

What other ways can you adjust focus?

Using the eyepieces and adjusting them to your eye's width and focus.

What should you clean your glass surfaces with on your microscope?

LENS PAPER ONLY

When moving your microscope on the table do you drag it?

No absolutely not, always pick it up completely and lightly set it down.

When we are looking through our microscope using the 4x lens what is the total magnification?

40x

When we are looking through our microscope using the 10x lens what is the total magnification?

100x

When we are looking through our microscope using the 40x lens what is the total magnification?

400X

What is the diameter of the field of view for 4x?

4600

What is the diameter of the field of view for 10x?

1800

What is the diameter of the field of view for 40x?

460

How do we estimate an objects size using the diameter of field of view and the number of times an object fits across the field of view?

the diameter of field of view / number of times object fits across

EXAMPLE:

1800 / 3 = 600