Rube Goldberg
Rube Calculations
1. PE of marble drop: Drop: 45.5 cm = 0.455m marble: 4.85 grams = 0.00485 Gravity: 9.81 m/s2 PE: 0.01J
2. Velocity of Hammer drop: Distance: 0.4 meters. Time:0.089 Seconds. Velocity: 4 m/s
3. Mechanical Advantage of mouse trap: Distance 1: 0.003m Distance 2: .0005m MA:6
4. Velocity of block: distance .4m Time: 1 second Velocity: .4m/s
5. Velocity of Marble: Distance: .065m Time: .20 seconds. Velocity: .3 m/s
6. MA of ramp Height: .08m Distance .25m MA: .3
1. PE of marble drop: Drop: 45.5 cm = 0.455m marble: 4.85 grams = 0.00485 Gravity: 9.81 m/s2 PE: 0.01J
2. Velocity of Hammer drop: Distance: 0.4 meters. Time:0.089 Seconds. Velocity: 4 m/s
3. Mechanical Advantage of mouse trap: Distance 1: 0.003m Distance 2: .0005m MA:6
4. Velocity of block: distance .4m Time: 1 second Velocity: .4m/s
5. Velocity of Marble: Distance: .065m Time: .20 seconds. Velocity: .3 m/s
6. MA of ramp Height: .08m Distance .25m MA: .3
Rocket Project
Rocket Reflection
The Condor, my rocket, didn’t really work all that well but I was proud that it even worked. My first design probably would have gone higher than my final rocket. It had a two liter chamber and two smart bottles on top of it but the smart bottles were crooked. It even flew straight without fins when we test launched and lost it. Our final rocket was a one liter chamber with another one liter bottle on it and we had a water bottle and foam nose cone. It flew straight but didn’t get as high as we had hoped or even ad high as our first rocket without any water in it. Next time I would make a very light very tall rocket with a long nose cone that came out. I stole those ideas from Dylan Kroes’ rocket that went really high and stayed straight.
I thought that the exhibition was a really fun experience and was glad that we had such an awesome teacher that actually let us makes rockets for a school project and that let us interact with the whole class a lot during the project. In the early stages of this project my partner and I were getting ambitious and we were going to make a two staged rocket with a CO2 canister and then we realized that it would cost a lot of money to make a mechanism to poke a hole in the canister, so we didn’t use that idea. Also, this year there was the only working two stage water rocket at AHS, it was really cool and they really thought their rocket through and it paid off. Although the two stage did not go the highest it was the most innovative.
Before this project, I was very excited to make a rocket for school. My emotions stayed the same for the whole project until the exhibition, I was overwhelmed with joy when we were launching the rockets.
I thought that the exhibition was a really fun experience and was glad that we had such an awesome teacher that actually let us makes rockets for a school project and that let us interact with the whole class a lot during the project. In the early stages of this project my partner and I were getting ambitious and we were going to make a two staged rocket with a CO2 canister and then we realized that it would cost a lot of money to make a mechanism to poke a hole in the canister, so we didn’t use that idea. Also, this year there was the only working two stage water rocket at AHS, it was really cool and they really thought their rocket through and it paid off. Although the two stage did not go the highest it was the most innovative.
Before this project, I was very excited to make a rocket for school. My emotions stayed the same for the whole project until the exhibition, I was overwhelmed with joy when we were launching the rockets.
Physics Behind The RocketsOur rocket related to Newtons first law in that the rocket did not move until the opposing force (the locking mechanism) was taken away. This is because the locking mechanism counteracted the upward force of the rocket. So, if the rocket had an upward force of 45N the mechanism had a down ward force of 45N. While it was in flight it should have flown straight unless acted on by an outside force. Our rocket did not fly straight. This is because the wind was effecting it. So if the vertical force was 10N, it would take more than 10N of horizontal force to shift directions. Once the rocket looses its upward force the pull of gravity pulls it back down. Then once it hits the ground, the ground exerts an upward force to counteract the down ward force of the rocket.
We observed Newtons second law At the rocket launch. The acceleration is directly proportional to force. This is because the more force that is exerted the higher the rate of acceleration. Newtons second law also states that acceleration is inversely proportional to the rockets mass. This is because the longer the rocket has been accelerating, the less propellent (in this case water) remains. Our rocket relates to Newtons third law by that everything that outside elements do to are rocket there was an equal and opposite reaction. An example of this is when the wind hit are rocket went of trajectory. Another example of this is in that before it came to complete stop on the ground exerted an equal and opposite to the rocket so that it bounced. |
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