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1 |
You may work in groups of up to three. Your team members must be from your class. |
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2 |
You may not use a piece of paper or poster board smaller than 11” x17 “ or larger than 26” x 42.” |
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4 |
Must work on it during every class AP physics class period you are present in class |
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2 |
The track should NOT be drawn in pencil. It should be drawn in ink, marker, or crayon. |
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2 |
The project is due May 23, by 3:50 PM -even if you do not have class that day. No late projects will be accepted. |
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5 |
All accelerations should be less than 5.5 g’s. |
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2 |
Heights and loops are to be scaled appropriately. |
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2 |
The lengths and heights on speed runs are scaled appropriately. |
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2 |
The angles on banked curves are correctly calculated and labeled. |
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3 |
Centripetal accelerations felt by the riders on banked curves must be calculated. |
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√ |
Horizontal curves do not need to be scaled on your 2d’ish drawing. |
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√ |
The horizontal lengths not mentioned above must look appropriate but do not have to be scaled. |
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3 |
Friction is ignored unless your stipulate its existence over a piece of track to use it to make a calculation. |
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4 |
Data from a freefall hill must be presented in small data table on, “Copy 3.” |
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5 |
Springs must have a calculation showing the average acceleration during compression and extension of the spring and it’s force constant. |
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10 |
Correct calculations with proper SI units and accelerations in g’s. |
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5 |
Include all three copies as mentioned above. |
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8 |
Show all calculations for changes in velocity at extremes like hill/loop tops and bottoms and after outside forces are applied. |
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3 |
Show all calculations for flat and banked curves. |
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3 |
Show calculations for freefall shaped hills. |
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3 |
Show calculations for additional non-conventional pieces. |
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6 |
At least two hills that follows freefall path. One high and one no higher than half the height of the other. |
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6 |
At least loop where a rider feels between 1.5 and 5.5 g’s. |
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4 |
At least one banked curve where the rider feels a centripetal acceleration less than 3.0 g’s if the curve is banked and less than 2.0 g’s if it is flat. |
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2 |
Banked curves must be designed for the optimum angle with minimal |
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10 |
Working on the roller coaster everyday you are in class. |
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4 |
At least one power calculation showing the power to pull a 15,000 kg train up the first hill or get it up to speed depending on your initial launching method. |
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5 |
At least one spring. |
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5 |
An obvious theme. |
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3 |
A title. |
Extra credit if your roller coaster includes: |
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1+ |
Great scenery |
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4+ |
Cool design element not mentioned above. Be creative. |
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111 |
=> possible points. This will be scaled for your final grade. |
