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Edexcel IAL Physics Unit 1 (WPH01) 23 May, 2017 Paper discussion

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Reply 20

chemistry igcse

Original post by suwaidharyani

what was the acc of fly?

I got 1294m/s^2

Reply 21

Cai Jianlin

Something similar , about 1500 ms^-2

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Reply 22

Cai Jianlin

ImageUploadedByStudent Room1495533254.501442.jpg

I am not sure whether this one is correct or not?

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Reply 23

PCK11800

Dunno how you guys manage to get 92% for the energy question... I got 23.4 % exactly.

The distance travelled I got 0.14m.

The acceleration I got 1250ms^-2

Reply 24

PCK11800

Original post by Cai Jianlin

I am not sure whether this one is correct or not?

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Not sure how you going to measure the viscosity of the oil directly.

F=6 * pi * r * n(viscosity) * v

So I think you just need to find the terminal velocity and radius of the sphere and that's it.

Reply 25

examhater44

What did you guys get for the vector question diagram....what was the resultant force??

Reply 26

Black.Panther00

Original post by rayyanbkc

Wasn't sure about that question made referencing to newtons third

Yup it was ! I wrote according to n3 then related to N2 !

Reply 27

Cai Jianlin

29.2329

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Reply 28

cenet0:o

Original post by examhater44

What did you guys get for the vector question diagram....what was the resultant force??

29.4N

Reply 29

cenet0:o

Really need the unofficial mark scheme

Reply 30

Black.Panther00

Original post by PCK11800

Not sure how you going to measure the viscosity of the oil directly.

F=6 * pi * r * n(viscosity) * v

So I think you just need to find the terminal velocity and radius of the sphere and that's it.

Wasn't he asking about the motion of the ball ?? the diagram is correct i did the same thing ! But instead of markers i wrote Thread** !!

Reply 31

PCK11800

Whats the energy percent for the fly question? I seen conflicting answer everywhere :/

Reply 32

examhater44

Original post by mandax_25

29.4N

i got 30.8

Reply 33

examhater44

Original post by PCK11800

Not sure how you going to measure the viscosity of the oil directly.

F=6 * pi * r * n(viscosity) * v

So I think you just need to find the terminal velocity and radius of the sphere and that's it.

You only needed to find the terminal velocity

Reply 34

Black.Panther00

Original post by examhater44

You only needed to find the terminal velocity

Yeaaaa !!! Thankkk goddd !!! XD LOL !

Reply 35

Shamin06

anyone get around 97.2% for the last question?

Reply 36

Cai Jianlin

I think we need to divide the number by 2

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Reply 37

simon_k17

Original post by S.NoumanAzhar

I got a pretty small distance something in the range of 0.14m i think

Almost certain that it is 0.12, but possibly you still get the other marks for the working out, if youre lucky theyll maybe even give you full marks. I believe you havent used all of the significant figures on your calculator when doing the question, so if that is the case, usually their pretty nice with that.