Edexcel IGCSE Physics 20th May 2015 discussion

The principle of moments (anticlockwise = clockwise moment) and the light beam moment questions are not coming up so don't worry.

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Yes im okay with learning moments. Physics overall is a challange for me. I dont really enjoy it. I know that i can at least get a B in it though. Id love to get an A.

How can you be so sure that the light beam wont come up. Never under estimate lol. It doesnt come up often so it could be a curve ball this year.

Reply 61

Foreboding

5

Original post by Ambrosia_angel

Yes im okay with learning moments. Physics overall is a challange for me. I dont really enjoy it. I know that i can at least get a B in it though. Id love to get an A.

How can you be so sure that the light beam wont come up. Never under estimate lol. It doesnt come up often so it could be a curve ball this year.

I know it's not coming up because the specification says it is on paper 2. If you learn all the formulas (and how to use them), the convection radiation and conduction which is easy and the motion forces rules I think you'll do fine. If anyone is stuck they can msg if they want.

Reply 62

richardkeys

are ray diagrams part of the syllabus because it came up in jan 2014 but i cant find it in my text book or online

Reply 63

username1234032

14

Original post by Foreboding

I know it's not coming up because the specification says it is on paper 2. If you learn all the formulas (and how to use them), the convection radiation and conduction which is easy and the motion forces rules I think you'll do fine. If anyone is stuck they can msg if they want.

Oh yeah it does. I didnt check that page in the spec. Lol i havent revised it yet anyway lol

Reply 64

username1234032

14

Original post by richardkeys

are ray diagrams part of the syllabus because it came up in jan 2014 but i cant find it in my text book or online

Im gonna fail the ray diagram question. I have no clue on how to do them properly. I usually scrape 2 or so marks. Its really hard to find examples on how to do them.

Reply 65

Chomp9787

Original post by djmans

its better to know all the formulas, usually they help you identify the equation in the first part of a question.

Well basically I would learn them otherwise your screwed....
But you are given a few on the formula sheet, sometimes you're given the units but sometimes they ask you so good luck :smile:

Reply 66

lol21

Guys can anyone explain to me how electromagnetic induction and the dynamo effect work?

Reply 67

wenogk

6

The paper was confusing but I prolly managed at least 100/120.. I didn't know what to write for why a variable resistor was used I wrote a "control" -_-

Reply 68

tillu22

3

Original post by wenogk

The paper was confusing but I prolly managed at least 100/120.. I didn't know what to write for why a variable resistor was used I wrote a "control" -_-

Yeah I said to alter the resistance if current gets to large. Idek if that makes any sense......

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Reply 69

PalwashaAyubb

2

So guys how was the paper anyone remembers the questions or answers?What did you guys write for used on total internal reflection,i wrote used in prisms to produce spectrum of white light ah i dont know btw what did everyone write for the last question and the kitchen question?The last qesution was about the thermistor and graph

Reply 70

wenogk

6

I wrote optical fibres to transfer data and periscopes in submarines

Reply 71

Pagarani Neelesh

2

In the graph what was on x axis the force or distance

Reply 72

yupppp89

2

Original post by Pagarani Neelesh

In the graph what was on x axis the force or distance

force

Reply 73

anisa711

2

what did you guys write for the hazards in the kitchen?
i wrote something about the water being hazardous due to electric shock
and something about the appliances in the kitchen can have faults eg. exposed live wires
and the third point was about having too many appliances on can cause a large current and a surge, this can cause a fire.
i am really unsure about this question because i felt that i was repeating myself. plus, it was 6 marks! that's too much to loose on a paper like this!
so, what do u guys think? and tell me what anwers you put down...

oh and for the squerrel question, what did u answer?i said C- "GPE increases" because i know that B- cannot be true because there is the force of gravity. And i think A is wrong too because if the force was unbalanced, then the querel will be moving right?

Reply 74

anisa711

2

what did you guys write for the hazards in the kitchen?
i wrote something about the water being hazardous due to electric shock
and something about the appliances in the kitchen can have faults eg. exposed live wires
and the third point was about having too many appliances on can cause a large current and a surge, this can cause a fire.
i am really unsure about this question because i felt that i was repeating myself. plus, it was 6 marks! that's too much to loose on a paper like this!
so, what do u guys think? and tell me what anwers you put down...
oh and for the squerrel question, what did u answer?
i crossed C-

Reply 75

yupppp89

2

Original post by anisa711

what did you guys write for the hazards in the kitchen?
i wrote something about the water being hazardous due to electric shock
and something about the appliances in the kitchen can have faults eg. exposed live wires
and the third point was about having too many appliances on can cause a large current and a surge, this can cause a fire.
i am really unsure about this question because i felt that i was repeating myself. plus, it was 6 marks! that's too much to loose on a paper like this!
so, what do u guys think? and tell me what anwers you put down...

oh and for the squerrel question, what did u answer?i said C- "GPE increases" because i know that B- cannot be true because there is the force of gravity. And i think A is wrong too because if the force was unbalanced, then the querel will be moving right?

I wrote about the water but then I went off about burns and stuff...dunno, it was quite a hard paper

Reply 76

ellie98

9

Original post by anisa711

what did you guys write for the hazards in the kitchen?
i wrote something about the water being hazardous due to electric shock
and something about the appliances in the kitchen can have faults eg. exposed live wires
and the third point was about having too many appliances on can cause a large current and a surge, this can cause a fire.
i am really unsure about this question because i felt that i was repeating myself. plus, it was 6 marks! that's too much to loose on a paper like this!
so, what do u guys think? and tell me what anwers you put down...

oh and for the squerrel question, what did u answer?i said C- "GPE increases" because i know that B- cannot be true because there is the force of gravity. And i think A is wrong too because if the force was unbalanced, then the querel will be moving right?

For the squirrel question, I said A
Because there is an unbalanced force on the squirrel, causing the squirrel to slow down and stop travelling at a constant velocity

Reply 77

yupppp89

2

Original post by ellie98

For the squirrel question, I said A
Because there is an unbalanced force on the squirrel, causing the squirrel to slow down and stop travelling at a constant velocity

Yeah I said A as well

Reply 78

anisa711

2

Original post by ellie98

For the squirrel question, I said A
Because there is an unbalanced force on the squirrel, causing the squirrel to slow down and stop travelling at a constant velocity