PHYA5 ~ 20th June 2013 ~ A2 Physics

Personally, wasn't the paper for me...

I'd say a solid 38 definite marks, god knows how many extra. However that will give me my B and i'm into Uni so all is good

Anyone home yet? What did you think?

Wasn't too bad methinks

Personally, wasn't the paper for me...

I'd say a solid 38 definite marks, god knows how many extra. However that will give me my B and i'm into Uni so all is good

Shall we try an start an unofficial ms?

My memory is awful, so the only qs I remember are from the optional (astrophysics)

How did you draw the diagram? And what lens eye or OBJ?

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These were the numerical answers I got, sound familiar to anyone? (I'm hoping and praying people say yes haha)

Radioactivity section:
25.7 MeV
0.034 kg (specific heat capacity one threw me, this is probably wrong)
130.5 moles
28.1 kgm^-3
0.167 kg

astro section:
78 cm
1.21x10^10 m

8.7x10^-19 rad
(I assumed that 1 solar mass was the mass of the sun - am I right?)

6.11x10^-11 rad
(couldn't get the 5:1 ratio unfortunately so I've made mistakes somewhere)

71.9 kms^-1Mpc^-1
13.9 billion years


p.s. no one treat this as a mark scheme by any means!! These were just the answer's I put which are just as likely to be wrong as right..

These were the numerical answers I got, sound familiar to anyone? (I'm hoping and praying people say yes haha)

Radioactivity section:
25.7 MeV
0.034 kg (specific heat capacity one threw me, this is probably wrong)
130.5 moles
28.1 kgm^-3
0.167 kg

astro section:
78 cm
1.21x10^10 m

8.7x10^-19 rad
(I assumed that 1 solar mass was the mass of the sun - am I right?)

6.11x10^-11 rad
(couldn't get the 5:1 ratio unfortunately so I've made mistakes somewhere)

71.9 kms^-1Mpc^-1
13.9 billion years


p.s. no one treat this as a mark scheme by any means!! These were just the answer's I put which are just as likely to be wrong as right..

What did everyone get for the mass defect? I got 26.7 then got 25 didnt know whether to include positrons

Yes you needed to include positrons

These were the numerical answers I got, sound familiar to anyone? (I'm hoping and praying people say yes haha)

Radioactivity section:
25.7 MeV
0.034 kg (specific heat capacity one threw me, this is probably wrong)
130.5 moles
28.1 kgm^-3
0.167 kg

astro section:
78 cm
1.21x10^10 m

8.7x10^-19 rad
(I assumed that 1 solar mass was the mass of the sun - am I right?)

6.11x10^-11 rad
(couldn't get the 5:1 ratio unfortunately so I've made mistakes somewhere)

71.9 kms^-1Mpc^-1
13.9 billion years


p.s. no one treat this as a mark scheme by any means!! These were just the answer's I put which are just as likely to be wrong as right..

did anyone do turning points ? speed of 2.6x10^8 for the mass one ?

Yes, I got this! Turning points section was harder than all past papers' in my opinion!

What did everyone get for the mass defect? I got 26.7 then got 25 didnt know whether to include positrons