[SweatyGoldfish]

(Original post by shadab786ahmed)
It was 30m/s because it would have had to have been close to 32m/s for the next question... Anyway I used SUVAT and did s = u + v/2 t

And molecular bonds were being formed because it was cooling

How did you get 30 m/s? I didn't have a clue how to do that question

[gcseis]

(Original post by SweatyGoldfish)
Yeah me too.

We're probs good (:

[gcseis]

[QUOTE=alisonr;37841007]I wrote radiation as well

(Original post by bobbricks)
How did it go?


hmm I'm not sure, didn't do very well in the last section. The first two were ok. Found it harder than chemistry and biology:L

I wrote radiation too

[bobbricks]

(Original post by shadab786ahmed)
It was 30m/s because it would have had to have been close to 32m/s for the next question... Anyway I used SUVAT and did s = u + v/2 t

And molecular bonds were being formed because it was cooling

What did you write for the first question on why liquid A's temperature fell quicker than liquid B's?

[gcseis]

(Original post by SweatyGoldfish)
Yeah me too.

Yay! (:

[gcseis]

(Original post by bobbricks)
What did you write for the first question on why liquid A's temperature fell quicker than liquid B's?

I wrotw
-perhaps different liquids
-so different shc

[gcseis]

The question about the stars was so easy loved it

[SweatyGoldfish]

(Original post by gcseis)
Yay! (:

I wouldn't be too happy, I think its wrong :L

[bobbricks]

P1 questions:
Why liquid B cooled more quickly than liquid A (1)
What's happening when X is changing state (2)
Work out the energy released (2)
Main way heat was lost (1)
Why the energy efficiency was so high (2)
Which two radio stations caused interference and why (2)
How frequency/wavelength affects the amount of energy they have (2)
Proving the frequency of Infrared radiation- 1mm wave was 3x10^11(2)
An advantage of DAB (1)
6 mark question on the ozone layer (6)

4 more marks needed- please correct me if I have made any mistakes

[bobbricks]

P2 questions complete:
Draw alternating current with higher frequency (1)
Whether both diagrams show alternating currents (2)
Work out the power of the appliance (1)
Calculate energy supplied in kwH. (1)
Question about new 10p rate versus a previous 12p/6p rate, and you had to say why it wouldn't save any money (2)
How photocells work when they absorb energy (3)
6 mark question on designing an experiment to see how surface area affects photocells (6)
Complete the flowchart on the death of a star (2)
Why scientists should collaborate in order to find out more about stars (3)
What material can block alpha radiation (1)
Why she repeated the experiment (1)
How you can tell from the graph the different radiation sources used (2)

Please correct me if I have made any mistakes

[SweatyGoldfish]

Was it an AC or DC?

[bobbricks]

P3 questions:
Work out the speed before he braked (1)
Why the tyre marks on the road are not reliable (3)
How seatbelts help keep the driver safe (using energy in your answer) (2)
Why the parachutist was accelerating at the start (1)
Why he reached terminal velocity (1)
Why the terminal velocity was lower when he opened his parachute (2)
How kinetic energy is affected when mass doubles (1)
How kinetic energy is affected when speed doubles (1)
How braking distance is affected when speed doubles (1)
Why increasing mass caused the person to travel quicker (2)
6 mark question on how alcohol, road conditions and speed affects safety (6)

4 more marks needed- please correct me if I have made any mistakes

[Jesus Condom]

(Original post by SweatyGoldfish)
Yeah me too.

i got that too... it might be wrong

[Jesus Condom]

(Original post by bobbricks)
P3 questions:
Work out the speed before he braked (1)
Why the tyre marks on the road are not reliable (3)
How seatbelts help keep the driver safe (using energy in your answer) (2)
Why the parachutist was accelerating at the start (1)
Why he reached terminal velocity (1)
Why the terminal velocity was lower when he opened his parachute (2)
How kinetic energy is affected when mass doubles (1)
How kinetic energy is affected when speed doubles (1)
How braking distance is affected when speed doubles (1)
Why increasing mass caused the person to travel quicker (2)
6 mark question on how alcohol, road conditions and speed affects safety (6)

4 more marks needed- please correct me if I have made any mistakes

for the 2nd one what did you all write?

[bobbricks]

(Original post by Jesus Condom)
for the 2nd one what did you all write?

I wrote that braking distance could be affect by road conditions- e.g. icy roads will cause cars to travel further since there is less grip between the tyres and the road. Worn tyres will also reduce friction between the road and tyres...What did you write?

[L'Evil Fish]

(Original post by SweatyGoldfish)
How did you get 30 m/s? I didn't have a clue how to do that question

I was looking at a level maths in mechanics modules and SUVAT equations are there... And it was average speed x time gives distance and you solve the formula...

[L'Evil Fish]

(Original post by gcseis)
I wrotw
-perhaps different liquids
-so different shc

I said it was because the temperature difference was greater...

[bobbricks]

(Original post by shadab786ahmed)
I said it was because the temperature difference was greater...

That's somewhat similar to what I wrote- the liquid may have been in a different room which had a lower room temperature. Do you think I'll still get a mark for it though?

[ghost_rebel]

(Original post by shadab786ahmed)
I said it was because the temperature difference was greater...

Yeah!i wrote thattoo because the greater the difference then the quicker the rate of cooling will be!!

[stardude8]

In p2, there were questions on something to do with alpha radiation and a liquid, then why repeats were used, and then interpreting a graph on different radiation types.

In p1, there was a question asking to show that the frequency of a 1mm wave was 3x10^11.

That's all the other questions I can remember. I am trying to think of the rest. Hope this helps

Another for p1 was an advantage of DAB (1 mark), and something to do with interference for 2 marks.