physics???

Force = Mass x acceleration
and so on...

Reply 2

Expression

Thats a toughy, Physics unfortunatly is a test of memory, you have to learn and memorise so many formulae, once you get past that, the application is quite simple.

I'm particularly chuffed I ditched Physics after AS, other wise my subject would be Maths, Further and Physics, and I would have got pig sick of equals signs, and wierd symbols. Geography thankfully offers a little bit of respite, and also requires some essay writing, a skill that wouldn't have been acquired if I'd ditched it in favour of Physics.

Good Luck anyway Katy.

Reply 3

Learn these super fun equations and you'll be ready for any physics exam:

Potential Difference = Resistance x Current
Charge = Current x time
Power = Potential Difference x Current or
Power = Current (squared) x resistance
Energy = Charge x Potential Difference
Force = Mass x acceleration
Weight = Mass x Gravity (Earth's gravity is 10 btw)
Density = Mass / Volume
Velocity = Distance / Time
Acceleration = Force / Mass
Pressure = Force x Area
Frequency = 1 / time period
Wavelength = Frequency x wave formula
Work Done = Force x distance
Power = Work done / time
Potential Energy = Mass x Gravity x height
Kinetic Energy = 0.5 x Mass x velocity (squared)
Efficiency = Work output / total energy input
Physics = The most fun you can have with your clothes on.

Enjoy!

Reply 4

hey mr white....u not got msn messenger?
xxx

Reply 5

Petrozzi

Lol at the last one, you're my hero.

Reply 6

I haven't got MSN - it's too complex for a technologically backwards individual like me.

Reply 7

katy -- learn more that those formulas!
are u doin force, fields and energy?
if so its a nightmare, im tryin now and cant grasp ne of it.

as for the ppl who say its just formulae...I wish!

xxxxx

Reply 8

mr white how dissapointin....u shud get it...

x

Reply 9

Originally posted by Mr White
Pressure = Force x Area

No, pressure is force per unit area.

Reply 10

Originally posted by Mr White
Learn these super fun equations and you'll be ready for any physics exam:

Potential Difference = Resistance x Current
Charge = Current x time
Power = Potential Difference x Current or
Power = Current (squared) x resistance
Energy = Charge x Potential Difference
Force = Mass x acceleration
Weight = Mass x Gravity (Earth's gravity is 10 btw)
Density = Mass / Volume
Velocity = Distance / Time
Acceleration = Force / Mass
Pressure = Force x Area
Frequency = 1 / time period
Wavelength = Frequency x wave formula
Work Done = Force x distance
Power = Work done / time
Potential Energy = Mass x Gravity x height
Kinetic Energy = 0.5 x Mass x velocity (squared)
Efficiency = Work output / total energy input
Physics = The most fun you can have with your clothes on.

Enjoy!

you don't know physics, do you?

Reply 11

he was just tryin to help

xxx

Reply 12

Originally posted by LittleMissSmile
he was just tryin to help

xxx

ahhh... how sweet.

Reply 13

I know physics well enough - I haven't taken it at A-Level but I got an A* at GCSE.

Those equations were from memory and its been over a year since I last used them, so I think I recited them well enough.

Reply 14

Originally posted by Mr White
I know physics well enough - I haven't taken it at A-Level but I got an A* at GCSE.

Those equations were from memory and its been over a year since I last used them, so I think I recited them well enough.

Sorry, I didn't mean to come across as being rude, I was just emphasising the fact that A-level physics has more complex formulae.

Reply 15

I wouldn't know - I'm more of a biology person.

Reply 16

texan trucker

dont owrry bout not knowin much... most of the formula are given in the formula sheet.. just learn when to u se which... eg the electrical field strength due to a wire.. or due to a coil... things like that... read the letts revision guide for a quick summary.. they are quite good reminders of the theories... but really u can get by by just knowin the meaning of things like field strength,, how linacs and accelarators work etc.. its not too hard.. if u know what the questions are askin of u

Reply 17

This is what I hate about Physics. The calculations are basic at worst, but it's deciphering the info.

Reply 18