Chapter 8

Question 1

What is color

Answer 1

Color is sensory response to electromagnetic radiation in spectrum

Question 2

What are types of colors

Answer 2

• Primary colors (red, yellow and blue)
• Secondary (Green, orange and purple)
• Tertiary colors (red-orange, blue-purple, yellow-green)

Question 3

What are secondary colors

Answer 3

They are formed by mixing primary colors

Question 4

What are Tertiary colors

Answer 4

They are formed by mixing one primary color and one secondary color

Question 5

What is color harmony

Answer 5

If the colors arrangement please human then they are in harmony

Question 6

What are the formulas for color harmony

Answer 6

• analogous colors

- complementary colors

Question 7

What are analogous colors

Answer 7

Such color which are near to each other. e.g. color wheel

Question 8

What is complementary colors

Answer 8

Complementary colors are opposed to each other. e.g. flower on plant. Nature created color harmony by complementary colors.

Question 9

Which part of eye detect colors

Answer 9

Photo receptor cells

Question 10

Does eye color perception decreases over time

Answer 10

Yes

Question 11

What is binocular vision or stereopsis

Answer 11

Watching 3D vision also called free fusion

Question 12

What is stereo pair

Answer 12

2 images get together to form a 3D image for an eye. These 2 images are called stereo pair.

Question 13

What are weaker clues of 3D

Answer 13

• Atmospheric perspective
• Speed of movement
• Observed detail

Question 14

What are 3 stages of reading

Answer 14

1. Visual pattern perceived
2. Decoded using internal representation of language
3. Interpreted using knowledge of syntax, semantics

Question 15

What is saccades in reading

Answer 15

Moving eye continuously in reading

Question 16

What is fixation in reading

Answer 16

Eyes stable on a thing

Question 17

What is regression in reading

Answer 17

Eye move backwards and forwards during reading

Question 18

What font size is legible

Answer 18

Font size 9-12

Question 19

Why reading on screen is slower

Answer 19

• Longer line length
• Few words on the page
• Orientation of page on screen

Question 20

What are two types of text contrasts

Answer 20

• Positive contrast

- Negative contrast

Question 21

What is negative contrast

Answer 21

Dark characters on light screen

Question 22

What is positive contrast

Answer 22

Light characters on dark screen

Question 23

What are 3 parts of ear

Answer 23

1. Outer ear
2. Middle ear
3. Inner ear

Question 24

What are 3 sound characteristics

Answer 24

1. Pitch
2. Loudness
3. Timbre

Question 25

What is pitch

Answer 25

Frequency of sound

Question 26

What is loudness

Answer 26

Proportional to the amplitude of sound

Question 27

What is timbre

Answer 27

Type of sound

Question 28

What is cocktail party effect

Answer 28

Focus on a specific sound in different sounds

Question 29

What is haptic perception

Answer 29

Touch

Question 30

What are 3 types of human haptic sensing

Answer 30

1. Kinesthesia 3. Proprioception 3. Tactile

Question 31

What is Tactile sensing

Answer 31

Sensation through skin

Question 32

What is Kinesthesia sensing

Answer 32

sense of limb motions

Question 33

What are 3 receptors in Kinesthesia sensing

Answer 33

1. Rapidly adapting 2. Slowly adapting 3. Positional receptors

Question 34

What is Proprioception sensing

Answer 34

Awareness of limb location

Question 35

Can touch be active and passive

Answer 35

Yes

Question 36

What are 3 stimulus received via sensory receptors in the skin

Answer 36

1. Thermoreceptors (heat and cold) 2. Nociceptors (pain) 3. Mechanoreceptors (pressure)

Question 37

What receptor used mostly in HCI

Answer 37

Mechanoreceptors (pressure)

Question 38

What is formula of time taken to respond to stimulus

Answer 38

reaction time + movement time

Question 39

Reaction time depends upon which 3 stimulus types

Answer 39

1. visual 2. auditory 3. pain

Question 40

movement time depends upon which factors

Answer 40

Age, fitness