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Osmosis
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Osmosis |
Global Warming
The effect of carbon dioxide in the atmosphere on the average temperature at the Earth's surface. The model predicts the effect on the average level of water in the oceans, which, if it increases, can cause flooding of low lying coastal land.
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Flood |
Pushing a Car
The motion of a vehicle starting from rest when pushed by one, two, or three men. Velocity and acceleration can be studied to investigate Newton's Second Law of Motion.
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Push |
Terminal Velocity
The motion of a bicycle or van so that the relationship between the propulsion force and velocity may be investigated.
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Terminal 1 Motion of a bicycle |
Terminal 2 Motion of a van |
Bouncing Ball
The motion of a ball rolling off the top of a shelf and then bouncing around a bedroom. The effect of the initial velocity of the ball on the time to fall to the ground may be investigated.
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Bounce |
Pitch and Putt
The motion of a golf ball when struck by a golf club. If it is pitched into the air, its range depends upon the velocity and angle of pitch and the amounf of friction in the air. On the putting green the motion of the ball is mainly dependent on the impact force of the club on the ball and the friction with the ground.
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Golf 1 Ball as a projectile in air |
Golf 2 Putting on the green |
Orbits in Space
The motion of a satellite in orbit around the Moon, the Earth & the other planets.
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Orbit 1 The motion of an orbiting satellite |
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Asteroid
The motion of an asteroid heading towards the Earth. As it approaches, it is affected by gravity which deflects it into a curved path.
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Asteroid |
Pendulum
The motion of a pendulum can be investigated, where the object mass and length of the pendulum can be varied.
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Pendulum |
Keeping Warm
The heat loss from the human body, taking into account temperature of surroundings and insulation properties of clothing.
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Warm Boy 1 Full model |
Warm Boy 2 Effect of coat thickness |
Warm Boy 3 Effect of external temperature |
Water Cycle
The cycle of water transferring from the Earth into the atmosphere, forming clouds and returning as rain.
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Water Cycle 1 Full model |
Water Cycle 2 Evaporation |
Water Cycle 3 Precipitation |
Buying Energy
The amount and cost of electrical energy supplied to a range of electrical appliances in a typical kitchen.
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Kitchen 1 Full model |
Kitchen 2 Power, time & energy: User selects power & time |
Melting Ice
The melting of ice into water: two scenarios.
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Ice cube 1 The melting of ice into water: ice cube on a plate |
Iced drink 1 The melting of ice into water: ice cube in a soft drink |
Growing Plants
The growth of a plant in terms of the necessary environmental conditions and the interdependency of the plant and its root structure.
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Plant 1 Full model |
Keeping Healthy
The decline of a population as affected by the percentages of people who smoke, eat excessively or take regular exercise.
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Health & smoking Population decline as affected by percentages of smokers |
Health & eating Population decline as affected by those eating excessively |
Health & exercise Population decline as affected by those who exercise |
Body Temperature Balance
A greatly simplified model to describe some of the factors, which govern the human body's ability to maintain a stable temperature.
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Body Temperature 1 Full model |
Body Temperature 2 Convection |
Body Temperature 3 Evaporation |
Predators and Prey
Various models observing the cycles of two populations (predator and prey) noting how they affect the size of each group.
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Predator-prey Foxes Foxes & Rabbits |
Predator-prey Owls Owls & Mice |
Predator-prey Sharks Sharks & Fish |
Simple Electric Circuits
Models examining the relationship between voltage, current and resistance.
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Circuit 3B 1, 2 or 3 Bulbs in series |
Circuit RV Variable Resistor |
Circuit EM Electromagnetic |
Forces in Action
The force of gravity on a range of different masses where the strength of gravity can be adjusted to simulate the effect of moving to the Moon or to another planet.
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Forces 1 The force of gravity on a range of different masses |
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Pulling a Sledge
Model of the motion of a sledge to relate the velocity to the number of passengers and the force used to pull the sledge.
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Sledge 1 Full model |
Sledge 2 Includes predicted transit time |
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Car Braking
Model of a car braking, measuring stopping distance and stopping time against the velocity of the vehicle, the braking force and the kinetic energy.
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Car Braking Full model |
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Kite
Model measuring the effect of changes in windspeed on the height that a kite will reach.
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Kite Flying a kite |
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Pinocchio
A model which predicts how long Pinocchio's nose will grow according to
how many lies he tells per day.
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Pinocchio Length of nose according to number of lies |
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Sheep
A model demonstrating the ratio of sheep to grassland necessary to keep them fed. Size of flock can be varied.
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Sheep Amount of grass consumed by a varied number of sheep and the time taken to consume the grass. |
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String
A model which calculates the area inside a loop of string
stretched out to make a rectangle (as for wrapping around a parcel).
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String About fitting a piece of string around a parcel |
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Warm Mouse
The heat loss from the mouse, taking into account temperature of surroundings and insulation properties of clothing.
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Warm Mouse Measuring heat loss |
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Warm Cow
The heat loss from the cow, taking into account temperature of surroundings and insulation properties of clothing.
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Warm Cow Measuring heat loss |
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