Ionic thruster high school science project

AI Thread Summary
A high school junior is seeking ideas for a science fair project focused on ionic thrusters, aiming for state-level competition in California. They have researched the operation and applications of ion thrusters, including different types like hall thrusters, and have seen DIY projects without vacuum chambers. The student is considering a hypothesis that tests how nozzle shape affects thrust force, while also contemplating the challenges of testing gases with varying atomic masses. They are looking for guidance on refining their hypothesis and project approach. Assistance and suggestions for the project are welcomed.
lucashuizat777
Messages
2
Reaction score
1
Thread moved from the technical forums to the schoolwork forums
I’m a junior in high school and I’m going to be entering the science fair. I want to do something impressive with a chance of progressing to the state level(CA). I want to try involving ionic thrusters but the i’m having trouble finding an actual hypothesis or independent variable to test. Can anyone help with ideas or advice for the project in general? Any help is greatly appreciated, thank you!
 
Physics news on Phys.org
Welcome to PF.

Since this is your schoolwork assignment, please tell us your thoughts so far. What reading have you done on the subject, and what are your ideas for how to incorporate ionic thrusters into a science fair project.
 
I’ve done reading into how ion thrusters operate, how they’re used in space, different kind of ion thrusters like hall thrusters and I’ve seen videos of people making small ion thrusters without vacuum chambers. This was the goal for my project. As far as hypothesis, I was considering testing how the nozzle shape affects the force of the thrust exerted. Another variable I was considering was testing gasses with varying atomic masses but that seems much more difficult.
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'A bead-mass oscillatory system problem'
I can't figure out how to find the velocity of the particle at 37 degrees. Basically the bead moves with velocity towards right let's call it v1. The particle moves with some velocity v2. In frame of the bead, the particle is performing circular motion. So v of particle wrt bead would be perpendicular to the string. But how would I find the velocity of particle in ground frame? I tried using vectors to figure it out and the angle is coming out to be extremely long. One equation is by work...
Back
Top