B3.3.1 - Microscopy Flashcards Preview

SHHS - Science - B3.3 Detection - Year 9 > B3.3.1 - Microscopy > Flashcards

Flashcards in B3.3.1 - Microscopy Deck (12)
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1

What is forensic science?

The study of materials and situations related to crime.

2

Why do forensic scientists gather and study evidence?

They gather evidence to use in a court of law.

3

Name the 2 types of microscope used by forensic scientists.

1. Light microscope
2. Electron microscope.

4

What is meant by magnification?

How many times bigger a microscope image appears compared to the real object.

5

What is meant by resolution?

The ability of a microscope to distinguish between 2 close together objects.

6

What is the radiation source of a light microscope?

Light

7

What is the radiation source of an electron microscope?

Electrons

8

What is the total magnification of light microscopes?

x 1, 000

9

What is the total magnification of electron microscopes?

x1, 000, 000

10

Is the image seen down a light microscope a colour or black and white image?

Colour

11

Is the image seen down an electron microscope a colour or black and white image?

Black and white

12

What sort of samples will forensic scientists look at under a microscope to identify a criminal suspect?

Hairs
Fibres
Paint flecks
Pollen grains
Soil