Physics revision

i am doing pure maths, physics, chemistry and biology exams in june for edexcel. i aint started revisin and seem not bothered. can anyone give me tips on how to revise on these subjects? thank you

That's right for maths, and it's not as if past physics papers don't help you revise, but for physics you do need to memorise things. I might make a topic on that as well if I'm in the mood! But not yet, too early. The exam is on thursday two weeks I think.

ne 1 able tp explain doppler effect frequency shifts etc my teacher is using word such as observer, actual, real, true to explain different parts of da equations but they all same the seem!
delta f/f = v/c etc
and hubble constant equations
wots da best way to revise this topic?

Isn't there just one Hubble constant equation? v = Hd where H is Hubble's constant. 1/H gives the age of the universe.

Not sure what you mean by the other things, but observers receive the signal of sound/light from the source (though I'd have thought that was obvious)..

yeah i know dat equation but they always seem to twist these questions in past papers....!

i am doing pure maths, physics, chemistry and biology exams in june for edexcel. i aint started revisin and seem not bothered. can anyone give me tips on how to revise on these subjects? thank you

A galaxy is 4.5 x 10power24metres from earth
Show that galaxy is likely to be moving at a speed of about 1 x 10power7m/s
H=65km/sM/pc
1parsec=3.1 x 10power16metres

That's right for maths, and it's not as if past physics papers don't help you revise, but for physics you do need to memorise things. I might make a topic on that as well if I'm in the mood! But not yet, too early. The exam is on thursday two weeks I think.