Sources of light (pg 132-133)
Mirrors (pg 134-137)
Write definitions for:
Draw three different diagrams to show how light rays reflect
off the stated type of mirror. Also list some features of the
image e.g. upside down, smaller than the object (diminished)
LUMINOUS
Refraction (pg 140-141)
NON-LUMINOUS
The diagram to the left shows refraction. Select
Use the table below to give examples of objects that are
luminous or non-luminous
LUMINOUS
Diagram
PLANE MIRROR
Features of the image
the correct words in these sentences to explain
how it works.
NON-LUMINOUS
A ray of light enters a glass block. The glass block
is more / less dense than the air around it. This
causes the ray of light to slow down / speed up so
that it bends towards / away from the normal line.
CONVEX MIRROR
As the ray of light leaves the glass block, it slows
down / speeds up and bends towards / away from
the normal line.
Total internal reflection (pg 138-139)
Use these words to fill in the gaps below: SHAPE
REFRACTED
CRITICAL
INCIDENCE
ANGLE
REFLECTED
INTERNALLY
Colour (pg 142-145)
List the seven colours of the spectrum in order:
CONCAVE MIRROR
When light enters glass, the way that it behaves depends on
the __________ of the glass and the __________ at which
the light enters the glass. The light may be
The splitting of white light into the spectrum of colours is called
d____________.
______________ at both glass surfaces and emerge, or it
may be ______________ in whole or in part from the second
surface.
If the angle of ________________ is increase so that it is
greater than the __________ angle (42o for glass), then the
light ray is not refracted at all at the second surface. Instead
it is total _______________ reflected and emerges on the
Why do red objects appear red?
Why do some objects appear white?
Why do some objects appear black?
What is the purpose of a coloured filter?
Colour mixing (pg 146-147)
Name the three primary colours of light.
same side that it entered.
Which colours should we mix to make:
Add lines to the diagram below to show how a light ray can
MAGENTA
be total internally reflected through an optical fibre.
YELLOW
CYAN
WHITE
Seeing the Light (pg 148-149)
Label this eye diagram with the following words: RETINA
OPTIC NERVE PUPIL CORNEA IRIS LENS CONJUNTIVA
Using electricity (pg 156-157)
Resistance (pg 152-153)
What are the energy changes in the following
What is resistance?
objects?
List three things that can affect resistance.
LOUDSPEAKER
ELECTRIC FAN
Why is high resistance wire used for the heating element
List three ways we can use electricity in a medical
in a kettle?
sense.
1
Why is low resistance copper wire used in most electrical
2
cables?
3
Modelling circuits (pg 154-155)
Use this space to draw out your own model of electricity. You must state what represents the
battery, bulb, wires, electrons, energy
Electricity in the home (pg 158-159)
Define the word power
What two units can power be measured in?
What does it mean to make electrical appliance more sustainable?
Give three ways that someone could reduce their ‘carbon footprint’.
1
2
3