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Understanding Colour > Light > Flashcards

Flashcards in Light Deck (30):
1

Hue

The pure colour itself

2

Saturation

The purity of the colour

3

Value

The lightness or darkness of the colour

4

Colour is equal to what

Colour= light + perception

5

Photon

A particle of light can also be a wave

6

Joule

The amount of work done by exerting a force

7

Energy

The ability to do work

8

W=F x D

Work= force(in newtons 'N') multiplied by Distance ( in meters 'M')

9

Energy is dependent on what

Mass distance and speed

10

Mass

The amount of matter within the object in total

11

Kinetic energy

The energy of motion

12

Longitudal wave

Propagation parallel to motion

13

Transverse wave

Propagation perpendicular to motion

14

What does lambda mean?

Wave length

15

Define wavelength

Distance between successive crests or troughs of the wave

16

Define frequency

Number of cycles(time) per second

17

Longer wavelength➡️?

Lower energy

18

Shorter wavelength➡️?

Higher energy

19

What is the range of our visual spectrum?

400 to 700 nano meters

20

Gamma ray bursts

High energy celestial objects in distant galaxies which emit high energy gamma rays

21

EM spectrum stands for what

Electromagnetic spectrum

22

Colour is broken down into how many basic causes

14 or 15

23

Who discovered the 15 causes of colour

Kurt Nassau

24

Who was the first person to have a good grasp on the way light behaves

Issac newton with his experimentum crucis

25

How does light travel

In a straight line

26

What is the speed of light

300,000 km/s also known as 'c' which is a constant

27

Newton introduced what

Colour wheel

28

Geothe

Introduced magenta to colour wheel

29

Itten

Introduced today's colour wheel

30

What are the three properties of colour

Hue value and saturation