lesson 1

Question 1

WHAT IS MICROSCOPE?

Answer 1

Magnify small objects, Produces enlarged images
of small objects, Microscopium (micro (small) + skopium (to look or see)

Question 2

WHO COINED THE WORD MICROSCOPE ?

Answer 2

JOHANNES GIOVANNI FABER

Question 2

WHO INVENTED THE MICROSCOPE?

Answer 2

zacharias janssen

Question 3

It is the lens the viewer looks through to see the specimen. The eyepiece usually contains a 10X or 15X power lens

Answer 3

Eyepiece

Question 4

is the ability to make things appear larger than they are.

Answer 4

MAGNIFICATION

Question 5

One of the most important parts of a compound microscope, as they are the lenses closest to the specimen. A standard microscope has three, four, or five objective lenses that range in power from4Xto100X.When focusing the microscope, be careful that the objective lens doesn’t touch the slide, as it could break the slide and destroy the specimen.

Answer 5

objective lenses

Question 6

Type of Objective Lens

Answer 6

1. Scanning Objective Lens (red line)- 4x
2. Low Power Objective Lens (yellow line)- 10x
3. High Power Objective Lens (blue line)- 40x
4. Oil Immersion Objective Lens (white line)- 100

Question 7

metal clips that hold the slide in place.

Answer 7

Stage clips

Question 8

the flat platform where the slide is placed

Answer 8

. Mechanical Stage -

Question 9

gathers and focuses light from the illuminator onto the specimen being viewed

Answer 9

Condenser-

Question 10

• fine tunes the focus and increases the detail of the specimen

Answer 10

Fine Adjustment Knob

Question 11

• the light source

Answer 11

Illuminator

Question 12

supports the microscope and it’s where illuminator is located.

Answer 12

base

Question 13

Useful as a means to change focus on one eyepiece so as to correct for any difference invisionbetweenyour two eyes

Answer 13

Diopter Adjustment Knob

Question 14

it carries the optical parts in the upper part of the microscope.

Answer 14

. Head

Question 15

. - screw that tightens and prevents the head from swiveling

Answer 15

Head Locking Screw

Question 16

.
-A rotating turret that houses the objective lenses. The viewer spins the nosepiece toselect differentobjective lenses

Answer 16

Nosepiece

Question 17

connects the body tube to the base of the microscope

Answer 17

Arm-

Question 18

• brings the specimen into general focus

Answer 18

Coarse Adjustment Knob

Question 19

-the hole in the middle of the stage that allows light from the illuminator to reach the specimen.

Answer 19

. Aperture

Question 20

.-adjusts the amount of light that reaches the specimen.

Answer 20

Iris diaphragm-

Question 21

these knobs move the stage left and right or up and down.

Answer 21

Stage Control Knobs-

Question 22

• adjusts the amount of light for the microscope. Older microscopes used mirrors to reflect light from an external source up through the bottom of the stage; however, most microscopes now use a low-voltage bulb.

Answer 22

Illuminator Adjustment Wheel