What is a transparent object?

Allows light to pass through completely

Allows most light to pass through

Allows no light to pass through

Allows little light to pass through

What is a translucent object?

Allows some light to pass through

Allows light to pass through completely

Allows most light to pass through

Allows no light to pass through

What is an opaque object?

Allows no light to pass through

Allows light to pass through completely

Allows most light to pass through

Allows little light to pass through

Why and how is a shadow formed?

Light travels in straight lines

Light cannot bend around an object

Light can not travel through opaque objects

Light can not pass through a translucent object

The change of direction of a light ray

The change of the angle of a light ray

The process of creating a shadow

The process of hitting an object

What happens to a reflection if a pebble hits a smooth water surface?

The water ripples cause the reflection to become unclear

It has become an irregular reflection

How do we see colours?

An object absorbs white light from a luminous object except for the colours that we see

An object absorbs white light from a non-luminous object except for the colours we see

An object absorbs white light from a non-luminous object except for the colours we do not see

An object absorbs white light from a luminous object except for the colours we do not see

What does the Sclera do?

Acts as the supporting wall of the eye

Stops dust and sweat from entering the eye

Acts as a shutter to stop light from entering. When we blink, it acts like a wiper, removing all the dust and moisturising the eye

What does the Iris do?

Acts as the supporting wall of the eye

Stops dust and sweat from entering the eye

Acts as a shutter to stop light from entering. When we blink, it acts like a wiper, removing all the dust and moisturising the eye

What does the Pupil do?

Acts as the supporting wall of the eye

Stops dust and sweat from entering the eye

Acts as a shutter to stop light from entering. When we blink, it acts like a wiper, removing all the dust and moisturising the eye

What do the Eyelashes do?

Stops dust and sweat from entering the eye

Acts as the supporting wall of the eye

Acts as a shutter to stop light from entering. When we blink, it acts like a wiper, removing all the dust and moisturising the eye

What does the Eyelid do?

Acts as a shutter to stop light from entering. When we blink, it acts like a wiper, removing all the dust and moisturising the eye

Acts as the supporting wall of the eye

Stops dust and sweat from entering the eye

What does the cornea do?

Thick layer of transparent cells that protects the eye

Controls the shape of the lens so that the eye can focus on near and far objects

Layer of sensitive light cells called rods and cons that change light energy into electrical signals

Carries electrical signals to the brain so that the brain makes sense of the image

What does the lens do?

Thick layer of transparent cells that protects the eye

Controls the shape of the lens so that the eye can focus on near and far objects

Layer of sensitive light cells called rods and cons that change light energy into electrical signals

Carries electrical signals to the brain so that the brain makes sense of the image

What do the lens muscles do?

Controls the shape of the lens so that the eye can focus on near and far objects

Thick layer of transparent cells that protects the eye

Layer of sensitive light cells called rods and cons that change light energy into electrical signals

Carries electrical signals to the brain so that the brain makes sense of the image

What does the retina do?

Layer of sensitive light cells called rods and cons that change light energy into electrical signals

Thick layer of transparent cells that protects the eye

Controls the shape of the lens so that the eye can focus on near and far objects

Carries electrical signals to the brain so that the brain makes sense of the image

What does the optic nerve do?

Carries electrical signals to the brain so that the brain makes sense of the image

Thick layer of transparent cells that protects the eye

Controls the shape of the lens so that the eye can focus on near and far objects

Layer of sensitive light cells called rods and cons that change light energy into electrical signals

Science Year 8

Authored by Nathalie Ckx

Physics, Science

8th Grade

Used 84+ times

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45 questions

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MULTIPLE CHOICE QUESTION

30 sec • 2 pts

What is light?

Form of energy that travels in straight lines

Form of energy that travels in wiggly lines

Not a form of energy and it travels in straight lines

Not a form of energy and it travels in wiggly lines

FILL IN THE BLANK QUESTION

30 sec • 1 pt

What is this group of light rays called?

FILL IN THE BLANK QUESTION

30 sec • 1 pt

What is this group of light rays called?

FILL IN THE BLANK QUESTION

30 sec • 1 pt

What is this group of light rays called?

MULTIPLE SELECT QUESTION

30 sec • 1 pt

What is a non-luminous object?

Does not emit its own light

Reflect light

Emits its own light

Does not reflect light

MULTIPLE SELECT QUESTION

30 sec • 1 pt

What is a luminous object?

Does not emit its own light

Reflect light

Emits its own light

Does not reflect light

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Can a luminous object be natural?

Yes

Ignore this (its a mistake)

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Science Year 8

What is light?

What is this group of light rays called?

What is this group of light rays called?

What is this group of light rays called?

What is a non-luminous object?

What is a luminous object?

Can a luminous object be natural?

Can a luminous object be man-made?

Which of these are luminous objects?

Which of these are non-luminous objects?

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