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
Q

What is forensic science?

A

The study of materials and situations related to crime.

2
Q

Why do forensic scientists gather and study evidence?

A

They gather evidence to use in a court of law.

3
Q

Name the 2 types of microscope used by forensic scientists.

A
  1. Light microscope

2. Electron microscope.

4
Q

What is meant by magnification?

A

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

5
Q

What is meant by resolution?

A

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

6
Q

What is the radiation source of a light microscope?

A

Light

7
Q

What is the radiation source of an electron microscope?

A

Electrons

8
Q

What is the total magnification of light microscopes?

A

x 1, 000

9
Q

What is the total magnification of electron microscopes?

A

x1, 000, 000

10
Q

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

A

Colour

11
Q

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

A

Black and white

12
Q

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

A
Hairs
Fibres
Paint flecks
Pollen grains
Soil