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|
| Dispersion |
Coloured
Filters |
Concave
- Convex Lens |
|
|
|
|
| A
demonstration of the dispersion of white light into coloured light.
The demonstration also allows the white light to be filtered prior
to entering the prism. |
The
coloured flags can be viewed through a coloured filter that can be
dragged around the screen. The colour of the filter can be changed
to be either red, blue or green. |
Three
parallel light beams are shone through a piece of glass. The piece
of glass can be altered in shape to become either a convex or a concave
lens showing how the beams converge
and diverge accordingly. |
| KS3 |
KS3 |
KS3 |
| Eye
Defects |
Law
of Reflection |
Reflection
at a Plane Ray Diagram |
|
|
|
|
| A
demonstration of normal sight, short-sightedness and long-sightedness.
The correction of the conditions may be carried out by varying the
focal length
of a corrective lens. |
A
simple summary of the Law of Reflection. The note can be dragged in
front of the mirror to read the law. |
An
object can be dragged around the screen and its image can be seen
in a plain mirror. The formation of the image is shown by plotting
the paths of the incident and reflected rays. |
| KS3,
KS4 |
KS3 |
KS3,
KS4 |
Reflection
At a Plane Mirror 1 |
Refraction
Through a Semi - Circular Block 1
|
Refraction
Through a Rectangular Block 1 |
| |
|
|
| A
3D simulation of the reflection of a beam of light by a plane mirror.
The angle of incidence can be varied. |
A
3D simulation of the refraction of light through a semi-crcular block.
The angle of incidence can be varied upto and beyond the critical
angle. |
A
3D simulation of the refraction of light through a rectangular block. |
| KS3 |
KS3,
KS4 |
KS3,
KS4 |
Reflection
at a Plane Mirror 2 |
Refraction
Through a Semi - Circular Block 2 |
Refraction
Through a Rectangular Block 2 |
| |
|
|
| An
interactive teaching aid to show the Law of Reflection. The angle
of the light source can be varied and the angles of incidence and
reflection measured with the optional protractor. |
An
interactive teaching aid to show how light is refracted by a semi-circular
block. The angle of the light source can be varied up to and beyond
the critical angle. |
An
interactive teaching aid to show how light is refracted by a rectangular
glass block. The optional protractor demonstrates that the incident
and emerging beams of light are parallel. |
| KS3 |
KS3,
KS4 |
KS3,
KS4 |
| Balanced
Beam |
Distance
Multiplier 1 |
Distance
Multiplier 2 |
|
|
|
|
| The
weights on the beam can be moved and extra weights added. The beam
will only balance when the clockwise and anti-clockwise moments are
balanced. |
Shows
a bicycle as an example of a distance multiplier. Turning the pedal
once results in the back wheel turning three times. |
A
demonstration of how the arm is a distance multiplier. Moving the
arm up and down shows that the muscle moves very little for quite
a large movement of the arm. |
| KS3,
KS4 |
KS3 |
KS3 |
| Levers
Starter |
Gravity |
Moments
Plenary |
|
|
|
|
| A
series of levers is used to ring the bell. A starter or plenary activity
for lessons on levers. |
A
simple demonstration of how the size of the force due to gravity depends
on the mass of objects and the distance between them. The demonstration
allows either the space shuttle or a satellite to be moved around
the Earth. The force of attraction between the object and the Earth
is shown as arrows. |
A
weight can be dragged onto the beam so that it is balanced when released.
There are 10 problems of increasing challenge. |
| KS3 |
KS3,
KS4 |
KS3,
KS4 |
| Forces
and Their Effects |
Transverse
and Longitudinal Waves |
The
Doppler Effect |
|
|
|
|
| Forces
and their effects can be illustrated using a 'landing craft' that
can be flown in zero gravity, a weak gravity field and a strong gravity
field. Options include showing all the (unresolved) forces on the
craft or the resultant forces only. |
This
shows simultaneous transverse and longitudinal waves. Both the wavelength
and amplitude may be changed and the waves can be 'frozen'. |
The
Doppler effect is demonstrated by the showing the propagation of waves
from a moving source relative to a stationary observer. The speed
of the moving source may be altered and the waves can be frozen at
any time. The observed wave is also displayed as a trace. |
|
KS3,
KS4 |
KS4,
KS5 |
KS4,
KS5 |
| Energy... |
Electricity
and Magnetism... |
| Bouncing
Ball |
Voltage
and Current |
|
| |
|
|
| A
ball can be dropped onto one of three surfaces and the bounce height
can be observed. The demonstation also shows how the gravitational
potential energy and kinetic energy of the ball varies with time. |
Shows
how the current in a simple circuit depends on the voltage. Different
voltages can be selected on the power supply and the voltage and current
can be read off the meters. |
An
electric motor and two bulbs are arranged so they can be independantly
controlled by push switches. This can be used as a starter to introduce
more complex switching arrangemants or as a simple plenary to a lesson
on circuits. |
| KS4,
KS5 |
KS3,
KS4 |
KS3 |
| |
Variable
Resistor |
Switch
Starter |
|
|
|
|
| An
alternative to 'Switches 1'. The circuit comprises a bulb and an electric
motor controlled independantly by toggle switches. In addition, a
push switch is placed parallel to the bulb to demonstrate the effect
of a short circuit. |
Shows
how the brightness of a bulb and the current in a simple circuit is
controlled by a variable resistor. |
A
simple starter for a lesson on electricity. Students are required
to work out which switch will turn on the light bulb. |
| KS3 |
KS3 |
KS3 |
| |
The
Electric Bell
|
Two
Way Switch |
|
|
|
|
| Shows
how a small (safe) current can be used to control a much larger current. |
Shows
how an electric bell works. Pressing the push-switch makes the bell
work in slow motion so that the actions can be understood more easily.
Labels are an optional extra. |
A
visual aid to help explain the workings of a landing light switching
system. |
| KS3 |
KS3 |
KS3 |
| |
Phases
of the Moon |
Seasons |
| |
|
|
| A
simple plenary activity where students have to work out (and explain
why) which bulb will shine the brightest when the switches are closed. |
An
interactive demonstration of how the position of the moon throughout
the lunar month gives rise to the moon's phases. Move the slider to
make the moon travel along it's orbit around the Earth. |
Shows
how the seasons arise because of the tilt of the axis of the Earth.
The slider makes the Earth move along it's orbit around the Sun. Also
shown is the path of the Sun (as seen from the Northern Hemisphere). |
| KS3 |
KS3,
KS4 |
KS3,
KS4 |
|
