OCR Gateway Physics P4P5P6 - 18/06/13

So im thinking this is everyones last exam

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I thought it was much easier than the specimen overall I think chemistry was easiest and biology was hardest, what about you?
Yeah I got 56 for part A then somehow 36 for part B however I never really understood those motion equations lol so hopefully I get at least 2 marks for it what outputs did you put for the logic gates? I got 0010

Nope, still got 2 further maths gcse ones and like others, statistics next Monday

On a more serious note I'll try to remember all my calculation answers, can you guys tell me if you got the same/different? Thanks

Current in length of wire test thing at 1.0m : 0.15 amps
Next part about drawing a thinner wire result it on the graph: basically twice the gradient

Skydiver: 56m/s speed, then 180m that he fell

Speed of light in water: approximately 225 million m/s

Resistors in parallel: 1/12th of an ohm

Filling in logic circuit: ALL 0s

Transformer: 46 turns on the primary coil, 1 turn on the secondary coil

Section D

I said Steve was wrong because I worked out the breaking distance increased by approximately 30% which is not double 34%

I got about 30,000km before the tread wore down too much


Tell me what you got guys

Of the ones I can remember I think I got the same as you other than the logic circuit. It was 00100 I'm pretty sure. I also got 12/13ths:

1/(1/2+1/3+1/4) = 12/13 ohms

On a more serious note I'll try to remember all my calculation answers, can you guys tell me if you got the same/different? Thanks

Current in length of wire test thing at 1.0m : 0.15 amps
Next part about drawing a thinner wire result it on the graph: basically twice the gradient

Skydiver: 56m/s speed, then 180m that he fell

Speed of light in water: approximately 225 million m/s

Resistors in parallel: 1/12th of an ohm

Filling in logic circuit: ALL 0s

Transformer: 46 turns on the primary coil, 1 turn on the secondary coil

Section D

I said Steve was wrong because I worked out the breaking distance increased by approximately 30% which is not double 34%

I got about 30,000km before the tread wore down too much


Tell me what you got guys

But for all of the logic circuit ones you had to fill in the NOT gate was supplied with a 1, so it would output a 0 and therefore the AND gate wouldn't get two inputs to turn on the fan.

Yeah, I think I got that one wrong. I never really revised resistor in parallel calculations.

I thought biology was the easiest and chemistry to be the most difficult (but still fairly easy) , mainly because I didn't have much time to revise for chemistry

Can't remember that question on logic gates...where was it in the exam paper (was it just after the find the resistance in the parallel circuit question)?

all the same but I got 12/13 ohms or 0.92 ohms


and on the transformer one I SWEAR the equation you needed was Vp x Ip = Vs x Is since they gave you current and voltage but nothing to do with turns

Is that statistics with Edexcel (sorry if I've asked you before but I don't think I have )?

But for all of the logic circuit ones you had to fill in the NOT gate was supplied with a 1, so it would output a 0 and therefore the AND gate wouldn't get two inputs to turn on the fan.

Yeah, I think I got that one wrong. I never really revised resistor in parallel calculations.

all the same but I got 12/13 ohms or 0.92 ohms


and on the transformer one I SWEAR the equation you needed was Vp x Ip = Vs x Is since they gave you current and voltage but nothing to do with turns

Hey everyone, hope the exam went well for you. I got that as well because I thought that it needed a 1 on the NOT or else input = 0 However I did get 12/13 ohms as you had to find the reciprocal of 13/12?

I got the 13/12 but for some reason I divided 1 by the denominator and got 1/12th, don't ask why...