B2 - Microscopes

Question 1

What does a microscope do?

Answer 1

It magnifies a small object to be seen in greater detail

Question 2

What is magnification?

Answer 2

When a specimen or object is enlarged to produce a larger image

Question 3

What is resolution?

Answer 3

The minimum distance between two objects or points that are close together but can be seen as being separate

Question 4

What is 1cm in mm?

Answer 4

10mm

Question 5

What is 1mm in micrometers?

Answer 5

1000micrometres

Question 6

What is 1micrometre in nanometres?

Answer 6

1000nanometres

Question 7

What is 1nanometres in pikometres?

Answer 7

1000pikometres

Question 8

What is the formula for microscope equations?

Answer 8

Image on top of triangle!

Image = Magnification X Specimen Size

Magnification = Image / Specimen Size

Specimen Size = Image / Magnification

Question 9

What is the measurement for magnification?

Answer 9

There isn’t one, just use x e.g. X1000

Question 10

Facts about light microscopes…

Answer 10

Uses visible light to view small objects in detail

You can view living organisms

Images are in colour

Maximum magnification = X1500

Question 11

Facts about election microscopes…

Answer 11

Uses a beam of electrons to create an image

Magnification is approx = X500,000

2 types of Electron Microscopes:

• transmission; Produces a 2D image
• scanning; Produces a 3D image