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Introduction

Chessington world of Adventure is a theme park, which is situated in Chessington in Surrey. It is an amusement park with various rides to thrill and entertain the different members of the family. All the rides fall into three main categories of propulsion, which are water, track and motor rides.

TYPES OF RIDES

WATER RIDES

The water rides basically operate on the theory that a circuit of water always tries to find its level, therefore creating falls and rises in the tube. The water is pumped out at one point on purpose. The water pulls the boat around, this is because water rushes to fill the void and at the same time raising the level around the circuit. Examples of water rides are bubbleworks, Dragon falls.

TRACK RIDES

These fall into two classes, the roller coaster and the free fall rides. The free fall rides use gravity, while the roller coasters use the technique of converting potential energy to kinetic and vice versa.

The free fall rides are taken up a hill. This is done by a chain lift, which is a sort of conveyor belt. The initial hill is the first peak from which the train will fall.

Middle

The application of the concept at chessington was with the ride called vampire, which is explained below

## VAMPIRE

This is a track ride, which can be called a roller coaster. It was made by arrow dynamics in Utah USA, from 1989-1990. It has three trains with seven carriages per train and four riders per carriage.

The working of the vampire apart from the help of gravity is based on the interconversion of potential energy to kinetic energy and vice versa at various stages of the ride. Like the free fall ride the train is taken up the first hill. The purpose of this initial ascent is to build up a sort of reservoir of potential energy. The concept of potential energy, often referred to as energy of position, is very simple: As the coaster gets higher in the air, there is greater distance gravity can pull it down. The potential energy the train builds going up the hill can be released as kinetic energy, energy of motion, as soon as it starts coasting down the hill. The diagram below shows how this works.

A roller coaster's energy is constantly changing between potential and kinetic energy. At the top of the first lift hill (a), there is maximum potential energy because the train is as high as it gets.

Conclusion

When the bumper cars collide the drivers feel a change in motion and also feel their inertia. When this happens the direction of the car change but the riders continue to move in a straight line and so it is important that seat belts are worn.

The masses of the drivers affect collision also. A difference in masses between two drivers means that one driver experiences more change in motion than the other.

Another principle, which comes into play in bumper cars, is Momentum. Momentum is the product of mass and velocity. A bumper car, which is moving, has momentum. When two bumper cars collide the total momentum before and after collision remains the same.

The electrical energy is not all converted to kinetic energy because some of it is converted to heat.

Examples involving bumper cars

If a bumper car with a woman of 50kg is stationary and is hit by another bumper car with a 90kg man. Predict the direction the cars will move and the final velocity after collision if the moving bumper car has a velocity of 20m/s.

Answer: The two bumper cars will move in the direction of the bumper car with the 90kg man.

For the calculation:

Momentum before collision = Momentum after collision

Bibliography: I used the and appreciated the following websites:

www.rcdb.com

www.learner.org

www.howstuffwork.com

www.bbc.co.uk

www.yahoo.co.uk

ONONUJU OKONKWO

ST TERESA’S SCHOOL

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