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The engine provides enough energy to keep the roller coaster moving throughout the track.  Since the roller coaster is heavy it provides a lot of energy to keep it moving along.  During the roller coaster ride the coaster keeps gaining and losing potential and kinetic energy.

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Total length: 184 cm

Drop height: 159 cm

Loop measurement: 15 cm

Time to get around the track: 6.41 seconds

The potential energy is 9.91 joules

The kinetic energy is 4.38 joules

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Dropbox is a free service that lets you bring your photos, docs, and videos anywhere and share them easily. Never email yourself a file again!

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Our roller coaster "Aaron's mega dream" pictures

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Our roller coaster "Aaron's mega dream" pictures

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Our roller coaster "Aaron's mega dream" pictures

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Our roller coaster "Aaron's mega dream" pictures

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Dropbox is a free service that lets you bring your photos, docs, and videos anywhere and share them easily. Never email yourself a file again!

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The tallest roller coaster is the Kingka da, which is 456 ft. high. The fastest steel roller coaster is Formula Rossa, with a top speed of 148 mph. The steel roller coaster with the longest drop is Kingda ka with a 418 ft. drop.

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Roller coasters first started in the 15th century in Russia when they were called '' ice slides.'' Some people believe that the French invented the roller coaster. In the 1850's, a mining company in Pennsylvania used an 8.7 mile track to transport coal. Later they started charging people for rides at 50 cents a piece. In 1959 Disneyland introduced steel tracks, which allowed roller coasters to be built in any way possible.

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When you are going up the tracks on a roller coaster before the big dip, then there is more potential energy. When you go down the hill, there is more kinetic energy.

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1/2 x mass x velocity^2

KE = 1/2mv^2

Kinetic Energy is measured in joules

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mass x g x height

PE = mh x (9.8 m/s/s

Potential Energy is measured in joules

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When an object is stopped it gains potential energy. When the object is in motion is has kinetic energy. When the roller coaster goes up, the higher it goes up, the more potential energy it has. then, when the coaster falls, the potential energy is turned into kinetic energy.

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Friction is what stops the motion of an object. Friction happens when there is a close interaction between two things that are sliding across each other. When a roller coaster comes to a stop, it is because of friction.

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If a rider is at the top of a free fall ride, they would feel their own weight. Lets say the rider weighs 120 lbs; they would feel the 120 lbs. of force from the seat pushing against them, but they would feel normal. When the ride starts, the seat drops out from under you and you feel weightless.

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Momentum relates to the amount of motion an object has. Anything that is in motion has momentum. If the object has a lot mass, then it will have more momentum than something with less mass if they are going at the same speed. So, if a roller coaster and a ping pong ball are going at the same speed, then the roller coaster will have more momentum.

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A "g" is a unit of acceleration. It is equal to the acceleration that gravity has caused. Free falling objects on earth change at a rate of 10m/s. So, an object that is at 4 g's of acceleration, it changes at a rate of 40 m/s a second.

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Centripetal force causes objects to move through a circle or along a curve. In a loop on a roller coaster, riders are pushed toward the tracks.

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If an object changes its speed or direction, it is accelerating. Roller coasters change acceleration a lot because they go in all different directions and speeds. Roller coasters have large accelerations, but a ride like the tea cups would have a small acceleration.