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Quiz by Jeffrey Piggott, created more than 1 year ago

KS3 test on light.

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light
reflection
refraction
colour
igcse

	Created by Jeffrey Piggott almost 8 years ago

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11581205

quiz

2017-11-27T12:47:19Z

Light Quiz

Light Quiz

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Question 1 of 20

1

Which of these statements is true?

Select one of the following:

Light travels in straight lines.
Light is stopped when it meets a solid object.
Light does not travel in straight lines.
Light will only travel for about 2000 km before it stops

Explanation

Question 2 of 20

1

Which phrase best completes the following sentence? We see things because:

Select one of the following:

they are luminous.
the Sun shines on them.
light from them enters our eyes.
light from our eyes shines on them.

Explanation

Question 3 of 20

1

Shadows are formed because:

Select one of the following:

light will only travel a certain distance before it stops.
a substance called ‘darkness’ collects behind some objects.
some objects do not give out light in all directions.
light cannot go through some objects.

Explanation

Question 4 of 20

1

Which statement is true?

Select one of the following:

Sound travels faster than light.
Light does not travel. It is either on or off.
Light travels faster than sound.
Light and sound travel at the same speed.

Explanation

Question 5 of 20

1

Opaque objects can:

Select one of the following:

transmit and reflect light.
transmit and absorb light.
reflect and absorb light.
only reflect light.

Explanation

Question 6 of 20

1

Which of these will absorb the most light?

Select one of the following:

a white sheet of paper.
a sheet of clear glass.
a black piece of card.
an orange piece of card.

Explanation

Question 7 of 20

1

How are eyes and pinhole cameras similar?

Select one of the following:

They both form an upside-down image.
They both use a lens to focus light.
They both convert light to electrical signals.
They both take photographs.

Explanation

Question 8 of 20

1

Which part of the eye converts light energy to electrical signals?

Select one of the following:

the lens
the optic nerve
the pupil
the retina

Explanation

Question 9 of 20

1

Which of these statements is true?

Select one of the following:

Light bounces evenly off rough surfaces.
Light bounces evenly off smooth surfaces like mirrors.
Light bounces off mirrors in all directions.
Light does not bounce off mirrors.

Explanation

Question 10 of 20

1

A plane mirror is:

Select one of the following:

a flat mirror.
a curved mirror.
a shiny mirror.
a mirror used in aeroplanes.

Explanation

Question 11 of 20

1

How big will the angle of reflection be?

Select one of the following:

20°
30°
40°
60°

Explanation

Question 12 of 20

1

Your image in a mirror:

Select one of the following:

is not as good looking as I am.
is upside down.
is always bigger than you.
seems to be behind the mirror.

Explanation

Question 13 of 20

1

Refraction is what happens when light:

Select one of the following:

hits an opaque object.
bounces off a mirror.
is scattered unevenly by a rough surface.
changes direction as it goes from one substance into another at an angle.

Explanation

Question 14 of 20

1

Refraction occurs because:

Select one of the following:

light speeds up when it goes from air to glass or water.
light slows down when it goes from air to glass or water.
light stops when it goes from air to glass or water.
light reflects inside transparent materials.

Explanation

Question 15 of 20

1

Which diagram shows the correct rays?

Select one of the following:

Explanation

Question 16 of 20

1

Which statement is not true?

Select one of the following:

A rainbow is a spectrum of colours.
White light is made up of many colours.
A spectrum can only be made using paints.
A prism can split white light into a spectrum.

Explanation

Question 17 of 20

1

A red filter:

Select one of the following:

absorbs red light.
lets through all colours of light.
only lets red light through.
changes all the colours into red light.

Explanation

Question 18 of 20

1

Blue objects look blue because:

Select one of the following:

they reflect all colours.
they refract all colours.
they absorb blue light.
they reflect blue light.

Explanation

Question 19 of 20

1

Danny is wearing white shorts and a red shirt.
Which statement is most likely to be is true?

Select one of the following:

In blue light, his shorts look blue and his shirt looks black.
In blue light, his shorts look blue and his shirt looks red.
In red light, his shorts look red and his shirt looks black.
In green light, his shorts look red and his shirt looks yellow.

Explanation

Question 20 of 20

1

Why does a lens change the path of light?

Select one of the following:

Light changes direction when it goes into the glass and when it comes out of it.
Light changes direction in the centre of the lens.
Light is reflected by the surface of the lens.
Light travels faster in glass than it does in air.

Explanation

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11581205

quiz

2017-11-27T12:47:19Z

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