Physics P-22 GT.

[Princess Raven]

I don't think I got that. I remember getting 2 point something x 10^4 :S do u remember the diameter and the thickness of the cylinder

yea diameter was 22.1 mm and thickness i think was 2mm and the mass was 9.6g

 

[Snowysangel]

yea diameter was 22.1 mm and thickness i think was 2mm and the mass was 9.6g

Crap I think I took the diameter then ugh do you think they'll give me ECF?

 

[Princess Raven]

Crap I think I took the diameter then ugh do you think they'll give me ECF?

of course there will be ecf dw

 

[Fallen316]

aw man i got 1:2

i got 4:1 for stress and 1:2 for strain.

 

[Snowysangel]

of course there will be ecf dw

I doubt it cause in the marking schemes they don't have the formulas or the workings...the values are inserted in. Do u remember how many marks that question was out of?

 

[SomeStudent]

woah i got 6.6%

I got exactly that!

 

[Princess Raven]

I doubt it cause in the marking schemes they don't have the formulas or the workings...the values are inserted in. Do u remember how many marks that question was out of?

no my teacher told me that there is ecf its just not in the ms.. and i dont rmr the marks exactly i think 3 for density and 4 for uncertainty and 1 for the final ans

 

[Princess Raven]

i got 4:1 for stress and 1:2 for strain.

yay! how did u get 1:2

 

[Kamihus]

no my teacher told me that there is ecf its just not in the ms.. and i dont rmr the marks exactly i think 3 for density and 4 for uncertainty and 1 for the final ans

There were 3 for uncertainty too

yay! how did u get 1:2

I got 4:1 for that too

 

[Princess Raven]

There were 3 for uncertainty too

I got 4:1 for that too

how

 

[Kamihus]

how

Young Modulus was same so stress and strain are directly proportional and ratios will be the same I guess

 

[Saahil Parikh]

Paper was easy, atleast if compared to the other MJ14 session papers. GT shouldn't be more than 35. A is in the bag if I don't screw up in the practical.

 

[Princess Raven]

Young Modulus was same so stress and strain are directly proportional and ratios will be the same I guess

But k isn't the same since diameters are different which effects the extension produced and thus shouldn't it be 1:2

 

[kitkat <3 :P]

But k isn't the same since diameters are different which effects the extension produced and thus shouldn't it be 1:2

but u know in area d^2 was first and (2d)^2 it should be 1/4 ._.

 

[Princess Raven]

Oh

but u know in area d^2 was first and (2d)^2 it should be 1/4 ._.

u r talking about the stress ratio ya I got 1/4 but it's wrong when u substitute values u get 4/1

 

[kitkat <3 :P]

Oh

u r talking about the stress ratio ya I got 1/4 but it's wrong when u substitute values u get 4/1

:O but why do we subtitute :/?

 

[Snowysangel]

Stress was 1 : .25 and strain was 1 : 4 ... I think. Although 1:2 does make sense

 

[Princess Raven]

1:.25 is another way of saying 4:1

 

[Snowysangel]

1:25 how did u even get it ?

Haha I meant 1 : 1/4..dunno if they accept fractions

 

[kitkat <3 :P]

Haha I meant 1 : 1/4..dunno if they accept fractions

but but but how