1. VYPT Stage 2: Astroblaster
Matthew Lam, Charling Li, Jasjit Manpotra
VYPT Stage 2: Astroblaster
Explain more on momentum
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2. Perpetual Motion Squad
Aim
When a large ball is dropped, with a smaller one stacked on top of it, onto a hard surface the smaller ball will often rise much higher than it would if it was dropped onto the same surface by itself, while the larger ball hardly bounces at all. Our aim was to investigate this phenomenon and design a multiple-ball system, using up to 4 balls, that will reach the greatest elevation of the top ball.
State the problem word-for-word
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3. Perpetual Motion Squad
Background
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Hypothesis
Energy changes
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5. Perpetual Motion Squad
Experiment Set-up
Retort Stand
Image source:
Erlenmeyer Flasks
Foam Balls
Nylon Monofilament
1 Kg Weight
Image source:
Barr & Grosvenor Ltd
WD-40 Oil
Image source:
wd-40.com
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6. Perpetual Motion Squad
Calculations
Known Data:
The height the balls are dropped from are at 95 ± 2.5 cm.
The masses of the four balls are:
#1: 0.6 grams;
#2: 1.2 grams;
#3: 2.5 grams;
#4: 4.0 grams.
Assumptions:
Acceleration due to gravity is 9.8 m/s2.
Air resistance is negligible.
Note: In this presentation all units of measurement will be in centimetres.
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7. Perpetual Motion Squad
Explanation
Before impact
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Explanation
On impact
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9. Perpetual Motion Squad
Explanation
Before impact
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Procedure
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Analysis
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Results
6 Sets of 2 trials
4-Ball system (Total mass 8.2 grams, Ratio of masses 6:12:25:40)
Height dropped from: cm
Height Reached: cm
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13. Perpetual Motion Squad
Results
1, 2 & 3-Ball system (Total mass 4.3 grams, Ratio of masses 6:12:25)
Height dropped from: cm
Height Reached: cm
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14. Perpetual Motion Squad
Results
1 & 2 -Ball system (Total mass 1.8 grams, Ratio of masses 1:2)
Height dropped from: cm
Height Reached: cm
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Considerations
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Conclusion
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Bibliography
Astroblaster simulation program
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Calculations
4-Ball System (Sample)
This should only be a reference
Note: For these calculations, the coefficient of restitution is assumed to be 1.
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