ANSWERS: OCR Physics B(Advancing Physics) G491~ 20th May 2014~ AS Physics

Coursework - 60 UMS, 30 marks, 20%

G491 - 90 UMS, 60 marks, 30%

G492 - 150 UMS, 100 marks, 50%

That is how it stacks up

(edited 9 years ago)

Reply 61

shloke123

1

Original post by Mutleybm1996

Round upwards even if it's 7.45... Just round up to 8 as it's the MINIMUM amount of bits and log(Vt/Vn) gives you the exact number of bits.

As for bandwidth it needs to be >> the maximum frequency(assume that 1 bit is carried on one wave and the Hz is the number of waves per second)

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Thanks, so essentially the transmission rate of bits per second is equal to the bandwidth of waves per second

Reply 62

Erulia

10

Panicing so much for this exam. Any quick tips/advice? Do you guys have any summary sheets on everything you need to know for this exam? I'm screwed, my memory is alkl over the place.

Reply 63

Robbo54

2

I really hope we have a nice question paper tomorrow - preferably questions I've revised.

Reply 64

Mutleybm1996

OP

19

Original post by Robbo54

I really hope we have a nice question paper tomorrow - preferably questions I've revised.

Probably won't be :frown:

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Reply 65

shloke123

1

does anyone else find the paper time constrained?

Reply 66

username1136031

1

Original post by MasterOfTheSwag

Coursework - 60 UMS, 30 marks, 20%

G491 - 90 UMS, 60 marks, 30%

G492 - 150 UMS, 100 marks, 50%

That is how it stacks up

Ahh totally forgot about UMS. Thanks.

Original post by shloke123

Thanks, so essentially the transmission rate of bits per second is equal to the bandwidth of waves per second

Yes. But the textbook says that bandwidth is bit rate ÷ 2. Confusing.

Reply 67

Malkation

Tomorrow Morning will be a bundle of joy.
I would try and have a brief look over the G492 Handout as both exams usually have something to do with them. So Batteries, Internal Resistance, And so on

For me it's always that first question with the SI units. Everything else i can sort of do to a certain degree but its them darn multiple choice questions.

However Using flash cards i now know them all! :P

Reply 68

Mutleybm1996

OP

19

Original post by Malkation

Tomorrow Morning will be a bundle of joy.
I would try and have a brief look over the G492 Handout as both exams usually have something to do with them. So Batteries, Internal Resistance, And so on

For me it's always that first question with the SI units. Everything else i can sort of do to a certain degree but its them darn multiple choice questions.

However Using flash cards i now know them all! :P

Both exams have something to do with it?

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Reply 69

Jamie001

When calulating max and min gradients using error bars (eg for uncertainty in young modulus), must the max and min lines pass through ALL error bars? thanks :smile: