Microscopes and magnification KS3

When would you use the diaphragm of a microscope?

• When you wanted to move the stage

• When you wanted to adjust the amount of light

• When you put the microscope away

• When you are focusing the microscope

Find the total magnification: 
Eyepiece = 10X 
Objective lens = 55X  

• 10x
• 55x
• 65x
• 550x

When looking at a specimen on your slide, you should always start with the

• low objective lens
• medium objective lens
• high objective lens
• super extra high power lens

When looking through your microscope, you move your slide to the right- the object you are looking at appears

• to move to the right

• to stay the same

• to move to the left

• vanish

The__________ sharpens the image under high magnification.

• the diaphragm

• fine focus adjustment

• coarse focus adjustment

• the body tube

The ________ of the microscope would show you the MOST magnified image, or the SMALLEST field of view.

• low power objective

• medium power objective

• high power objective

• stage

What power do you start with when using a microscope to observe onion cells?

• High power

• Medium power

• Low power

• Extra high power

Find total magnification for:
Eyepiece = 20X 
Objective lens = 20X  

• 20x
• 40x
• 200x
• 400x

Which lenses consist of low 4X, medium 10X, and high 40X magnification?

• Eyepiece

• Ocular

• Objective

• Illuminators

The higher the magnification, the ________ you see of the specimen.

• more
• less
• higher
• lower