What does the term 'perception' describe in interface design?

• The security features of the interface

• The functionality of the interface

• The look and feel of the interface

• The programming language used for the interface

Which of the following is NOT a component of the trichromatic system in perception of colour?

• Black-white

• Yellow-blue

• Purple-orange

• Red-green

How many colours per screen should be used as a rule of thumb when designing an interface?

• No more than 7

• At least 10

• Around 5

• Up to 3

What is the purpose of using a coloured block to highlight areas of interest on the interface?

• To blend in with the main content

• To separate information from the main content

• To make the interface look more colorful

• To confuse the user

What is the importance of luminance in interface design?

• To make the interface more interactive

• To make the interface more eye-friendly

• To make the interface more secure

• To make the interface load faster

What is the pop-out effect in interface design?

• When an image moves across the screen

• When an image appears to be hidden

• When an image stands out more than others using different shape, colour or size

• When an image blends in with the background

What is the effect of reading bright text on a bright background for a prolonged period of time?

• It has no effect

• It hurts the eyes

• It improves eyesight

• It makes the text more visible

Why do modern eBook readers allow users to change the colour palette for each book?

• To make the text more difficult to read

• To adjust the colours to the current conditions

• To make the interface more colorful

• To confuse the readers

What is the purpose of allowing users to change black font on white background to white font on black background in eBook readers?

• To make the text more difficult to read

• To improve the visibility in direct sunlight

• To make the interface look more modern

• To make the text less visible

Who invented the QWERTY Keyboard to be used on typewriters or keyboards?

• Bill Gates

• Steve Jobs

• Christopher Scholes