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1) Tyler, Jacob, Brandon, Martha and Amanda

2) 4 foam tubes, tape, marble, meter stick, stopwatch

PKLIFE ROLLER COASTER

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How does a roller coaster continue to move through the twists and turns of a track if it only uses an engine in the very beginning? Kinetic energy is being used to move the roller coaster through the twist and turns. Once Potential energy , the engine, has done its job bringing the roller coaster up the lift hill, Kinetic energy takes over bringing the roller coaster through the twist and turns

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INTERLOCKING CORKSCREWS

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LAUNCH TRACK

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HEARTLINE ROLL

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The tallest roller coaster: Kingda Ka in Six Flags. Its located in the United States and its 456ft high.

The fastest roller coaster: Formula Rossa in Ferrari World. It is located in United Arab Emirates and it goes up to 149 mph.

The longest roller coaster: Steel Dragon 2000 in Nagashima Spa Land. Its located in  Japan it is 8,133ft.

The steepest roller coaster: Takabisha in Fuji-Q highland. Its located in Japan and it has a 121 degree angle going down.

The tallest roller coaster inversion: Gate keeper in Cedar point. Its located in the United States and it has a 170ft dive drop.

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The first roller coaster came from Russia in the 17th century. The Russians made a 70 foot slide and a 80 foot slide that had a 50 degree drop. Some historians believed that the first roller coaster was made by the French. The roller coasters were built in Paris in 1812 and they had wheeled cars that were locked pretty well onto the track. Those roller coasters went at high speeds. The French also made the first loop track. When roller coasters started to get more popular people started to experiment with them and soon enough roller coasters started going into amusement park. But the great depression came and stopped the golden age of roller coasters. It lasted until 1972 when John Allen designed a new roller coaster called the racer. Ever since that new roller coaster the second golden age of roller coasters started and it still goes on till this day.

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Part D: Kinetic and Potential energy in roller coasters 

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Part D: Kinetic and Potential energy in roller coasters 

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How do KE and PE change throughout a roller coaster ride? Potential energy helps roller coaster carts go up the big hill then kinetic energy helps move the rollercoaster cart down the hill.

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POTENTIAL ENERGY = MASS x G x HEIGHT

PE = m h x (9.8 m/s/s)

KINETIC ENERGY = 1/2 x MASS x VELOCITY2

KE = 1/2mv2

What is energy measured in? Energy is measured in joules. Joules and energy is another word to describe work.

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Potential and kinetic energy: Kinetic energy is when energy is pass through an object which makes it move. Potential energy is energy stored inside an object that isn't moving. That potential energy waits until kinetic energy has comeback into the object so it could move.

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Acceleration: Is a rate in which an objects speed or direction is changed. The rollercoaster moves really fast through turns and drops.

Centripetal and centrifugal force: Centripetal force is the force that pushes an object inward. Centrifugal force is caused by inertia which fights against the centripetal force. The Centripetal force on the rollercoaster pushes your body against the seat and the centrifugal force pushes you a little bit so u don't slam your head against the seat.

"g":  is the unit of acceleration from gravity. When you are going down a drop on a rollercoaster gravity pushes the rollercoaster downward so it goes faster, which is the "g".

Momentum: Is the mass of the object in motion. When people get onto a rollercoaster it gets heavy and once it starts moving  you experience the momentum of the roller coaster moving you.

Weightlessness: is when you feel weightless. When falling from a huge drop on a rollercoaster you feel light, you don't feel any forces hitting you. You don't lose any weigh but you feel weightless, like you are floating

Friction: Is when one surface is moving on top of another surface. The rollercoaster cart moves on top of the tracks which creates friction because the cart is moving on top of the tracks.