Recent content by australianschoolkid

setup The set up used was a compass on a support frame with 5 turns of wire around it. We used the tan (theta) to represent the magnetic field strength of the wire as it is directly proportional. The magnetic field strength of the Earth was an unknown constant.

Fingers crossed Im going to bed now:zzz: , but will have a look in the morning, hopefully to some help:biggrin: ! Thanks Matt

Homework Statement Hi after doing a experiment at school, I have come up with a graph of magnetic field strength against current. I was wondering if anyone knew what the gradent of this line or area under the line represented? Homework Equations B=KI/R? The Attempt at a Solution...

Hey Im a physics student and was told that a mechanical engineer may think or i good idea to help so here goes... (this is what I've posted in the physics forum) Hello I have to complete an experimental physics project for high school physics this year and with help of the physics...

Thanks for the reply, I don’t think I would be able too get access to a wind tunnel unless there is one at the local university, and even so I think it would be a bit too complex for me. Thanks for the interest anyway thanks Matt

Well no unfortunately we don’t own a power-meter and my friend tells me he don’t think we will be able to afford one either. As for making one I think I might struggle, but it could be an option. Calibrate the resistance of the trainer I think sounds like the way to go, as I think I could go...

I was also thinking we could include the participants body temperature.

Wow thanks for the ideas Warren. My cyclist friend has roller's (I think that’s what they're called, so a bike can be ridden in the one spot) and I am forever selling heart rate monitors at the local sports store where I work. In particular like the idea of looking at the measuring power output...

Hello all, This year once I go back to school, (late January) I will need to complete a piece of assessment called an extended experimental investigation (EEI), I was terrible in a similar assignment last year and was lucky to just pass. This is my last year of schooling and most important. I...

Hello all, firstly I would like to thank those who helped me with my recent posts! I have now finished all my end of year assessment. One of those pieces of assessment was an extended experimental investigation (EEI), I was terrible in this assignment and was lucky to just pass. I will need to...

oh alright thanks again!

Theory An electric motor converts electrical energy into kinetic energy. Electrical energy is the amount of work (i.e force applied through a distance) that can be done by electricity, and kinetic energy is work needed to accelerate a body from rest to its current velocity (speed). In simple...

Oh ok thanks, ill will soon post what I have done which is due in tomorrow! Yikes! And if anyone would like to try and help me improve it... hint hint! It would be greatly approached! Also can you find power if you only know the current? I don’t think you can, but if I could it would be good!

yea ok maybe, lol better ask your teacher, lol i kno i would have not got that question right either! id say you would have to include 20m some how because otherwise it wouldn't have been given. lol good luck lol lol and let me kno please!

lol so X > 0.71. when V= 0.