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WorksheetsP2Reflection&Refraction
Total questions: 17
Worksheet time: 9mins
Name
Class
Date
1.
Which phrase best completes the following sentence? We see things because:
a)
they are luminous.
b)
the Sun shines on them.
c)
light from them enters our eyes
d)
light from our eyes shines on them
2.
Which statement is true?
a)
Sound travels faster than light.
b)
Light does not travel. It is either on or off
c)
Light travels faster than sound.
d)
Light and sound travel at the same speed.
3.
Which of these statements is true?
a)
Light bounces evenly off rough surfaces.
b)
Light bounces evenly off smooth surfaces like mirrors
c)
Light bounces off mirrors in all directions
d)
Light does not bounce off mirrors
4.
How big will the angle of reflection be?
a)
20°
b)
40°
c)
30°
d)
60°
5.
Your image in a mirror: A is not as good looking as you really are. B is upside down. C is always bigger than you. D seems to be behind the mirror.
a)
is not as good looking as you really are.
b)
is upside down.
c)
is always bigger than you.
d)
seems to be behind the mirror.
6.
Refraction is what happens when light:
a)
hits an opaque object.
b)
bounces off a mirror.
c)
is scattered unevenly by a rough surface.
d)
changes direction as it goes from one substance into another.
7.
Refraction occurs because:
a)
light speeds up when it goes from air to glass or water.
b)
light slows down when it goes from air to glass or water.
c)
light stops when it goes from air to glass or water.
d)
light reflects inside transparent materials.
8.
Which diagram shows the correct rays?
a)
b)
c)
d)
9.
Which statement is NOT true?
a)
A rainbow is a spectrum of colours.
b)
White light is made up of many colours.
c)
A spectrum can only be made using paints.
d)
A prism can split white light into a spectrum.
10.
Sound is caused by:
a)
waves.
b)
vibrations.
c)
heat.
d)
air.
11.
Sound travels in air because:
a)
air particles stay still.
b)
the wind blows it.
c)
particles pass on vibrations.
d)
electricity sends it through the air.
12.
Sound can travel through:
a)
gases and space.
b)
a vacuum.
c)
solids and liquids only.
d)
solids, liquids and gases.
13.
Which does sound travel through the most quickly?
a)
air
b)
water
c)
iron
d)
space
14.
Sound travels fastest in solid materials which have particles that are:
a)
wide apart.
b)
close together.
c)
very hot.
d)
able to move around freely.
15.
Which structure takes signals (impulses) to the brain?
a)
the cochlea
b)
the ear drum
c)
the auditory nerve
d)
the ear piece
16.
Which statement is NOT true?
a)
Quiet sounds can harm the ears.
b)
The sound near to disco speakers can be louder than a road drill.
c)
The eardrum can be damaged by personal stereos.
d)
A noisy factory can permanently damage the ears.
17.
In which part of the ear is input energy transferrred by sound and output energy transferred by another method?
a)
the cochlea
b)
the ear drum
c)
the auditory nerve
d)
the small bones
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