...i cant find my texbook now....can anyone post the required equations...or give me a link plz....p.s triple sience i.e includes momentum
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physics equations... watch
- Thread Starter
- 21-06-2005 17:36
- 21-06-2005 17:40
- 21-06-2005 17:41
- 21-06-2005 17:43
oh there are more!
moment= force *perpendicular distance between line of action and pivot
kinetic energy = 1/2*mass*speed2
- Thread Starter
- 21-06-2005 17:48
cheers,lol innterogator lol shush lol,anyhows anyone know a site...im so f******g pi****d off for loosin ma textbook...all them cgp jokes...
- 21-06-2005 17:56
Basic but important Physics formulae...
Need to know:
P=VxI and P=I²xR
E=QxV and V=E/Q
E=Pxt and E=IxVxt (These two are to calculate Energy, but can be used to find time)
F=m x a
W=m x g.f.s (gravitational field strength, they accept g in place of g.f.s though)
M=F x r (To calculate Moments, Force times Perpendicular Distance)
a=v1-v2/t or a=F/m (first formula is change in velocity over time)
f=1/T (T being time period)
v=f x (wave formula)
Wd=F x d
PE=m x g.f.s x h
KE=1/2m x v²
Need to know two others:
Efficiency= Useful work output / Total energy output
Transformer Equation: Primary Coil Voltage = No. of turns on Priamry Coil
Secondary Voltage No. of turns on Secondary
If you want to know what any symbol is just ask me, (i.e. F=m x a is Force equals mass times acceleration... etc)
These are basic stuff which you should have hammered home, very important...
- 21-06-2005 17:59
The syllabus should have a list of the equations which are not provided in the exam at the front. If you have a Lett's physics revision guide, then they are in the back of that too.
If you're doing OCR, check out the syllabus. It is great for last-minute revision!
- 21-06-2005 18:02
I am not sure if we need to know formulae considering Area, Volume and Pressure, learn them just incase, they are:
Volume: P1 x V1 = P2 x V2
You know how to use the formula correctly, yeah?
Ok, best way is to use a formula triangle...
How to use a formula triangle:
If the equation is A=BxC, then the triangle would be like this...
B|C (you want to find A, so cover up A and you are left with B|C or BxC)
If you wanted to find B, in the same formula, u set the triangle out like so:
B|C (Cover up B and you're left with A / C)
Also, if the equation is like this:
A=B/C, then the triangle is like this:
A|C (Obviously B needs to be at the top so that it can be divided by something...)
Then if u want to find C, you cover up C and are left with: B/A...)
Simple Ask me if u need help.
- 21-06-2005 18:07
get the syllabus off the website and it will have it all written down for you. good luck www.aqa.org.uk