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Friday, 1 March 2013

Research Into the Forces of Rollercoasters - Gcse Physics Coursework

Roller coasters
Part 1: Research and collecting unessential data
What are the main energy transfers that happen as a car travels along the track from the undertake of the ride to the quit?
The main energy transfers are between gravitational authorization energy (GPE) and kinetic energy (KE) [1][2][3][4][5], and the eventual decrease of robotlike energy as it transforms into thermal energy. Roller coasters often start as a chain and motor exercises a perpetrate on the car to lift it up to the top of a very t every(prenominal) hill [4]. At this height, GPE is at its highest [1][2][3][4][5], as we gage see through the polity:
GPE = mass x gravitational field strength x height [3][4] (for all physics in relation to Earth, take g to be 10 m/s2 or 10 N/kg)
We preempt see through this formula that as the height increases, so does the GPE, which will then be converted into KE, or kinetic energy. This is the energy that takes place as the car is falling pile the hill. This is calculated through the formula:
KE = 0.5 x mass x fastness2 [3][4]
This means that the kinetic energy increases as the speed increases, and misdeed versa. Therefore, this means the higher the kinetic energy, the faster the car. We can actually be extremely specific in name of this relationship.

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We know that as the mass doubles, the KE doubles, but as the speed doubles, the KE quadruples [2]. This becomes important when analysing this formula:
KE = GPE/0.5mv2 = mgh [3]
This shows the mathematical relationship between KE and GPE. This formula is in effect as the car is falling or rising a hill. The formula shows, that the KE gained, is equal to the GPE lost, and vice versa. To discerp this further, we can observe Newtons first virtue of motion. Newtons law describes how an object in motion, form in motion. This is why the roller coaster continues going up the angle [1]. However, the KE is lost, as gravity takes effect and the speed slows down. Observing the KE formula, as the speed slows down, the KE drastically drops,...If you want to get a ample essay, order it on our website: Ordercustompaper.com



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