Light & colour - Katie Bruce | Biblioteka

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How does light travel in a vacuum?

In curved paths

In straight lines

In zigzag patterns

It doesn’t travel in a vacuum

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What type of wave is light?

Longitudinal

Transverse

Mechanical

Stationary

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Which of the following is true about light?

It requires a medium to travel.

It travels slower than sound.

It can travel through a vacuum.

It is a mechanical wave.

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What happens when light reflects off a smooth surface?

It scatters in all directions.

It travels through the surface.

It bounces off in one direction.

It stops traveling.

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What is the angle of incidence equal to during reflection?

The angle of diffraction

The angle of refraction

The angle of reflection

The angle of absorption

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Which surface would produce a clear reflection?

A rough wall

A polished mirror

A piece of paper

A carpet

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What happens to light as it enters a denser medium at an angle?

a) It bends away from the normal

b) It bends towards the normal

c) It speeds up

d) It reflects back

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Which phenomenon causes a straw in water to appear bent?

a) Reflection

b) Refraction

c) Dispersion

d) Diffraction

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What happens to the speed of light as it moves from air to water?

a) It increases

b) It decreases

c) It remains the same

d) It stops

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White light is made up of how many colours?

a) Five

b) Seven

c) Eight

d) Nine

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What is the process of splitting white light into its component colours called?

a) Reflection

b) Refraction

c) Dispersion

d) Absorption

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Which colour has the longest wavelength in the visible spectrum?

a) Red

b) Violet

c) Green

d) Blue

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Which colour of light bends the most when refracted?

a) Red

b) Yellow

c) Blue

d) Violet

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What happens to white light when it hits a green object?

a) All colours are absorbed.

b) All colours are reflected.

c) Only green is absorbed.

d) Only green is reflected.

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Why does a black object appear black?

a) It absorbs all light.

b) It reflects all light.

c) It transmits all light.

d) It refracts all light.

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What determines the colour an object appears?

a) The light it absorbs

b) The light it reflects

c) The light it refracts

d) The light it emits

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What happens when we see a red apple under white light?

a) Red light is absorbed.

b) Red light is reflected.

c) All light is absorbed.

d) All light is reflected.

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What colour would a red apple appear under blue light?

a) Red

b) Black

c) Blue

d) White

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What happens to the other colours in white light when we see a blue object?

a) They are refracted.

b) They are absorbed.

c) They are reflected.

d) They are dispersed.

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Which part of the eye helps us see different colors?

a) Pupil

b) Retina

c) Cornea

d) Iris

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