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Original post by bonkkkkkk
grade boundaries' are supposed to be higher anyway, but I heard somewhere that they cannot be higher than the 2019 AQA Physics grade boundaries, which is a relief.


I'm confused, in 2019 a grade 7 was like 107 (a guess but something around that) but in 2022 it was 120 since they got the equations and advanced info...how can they go back to like 107 for a 7 if we still get the equations??
Reply 21
They Also got advanced information, they might be why
Reply 22
* that might be why
Reply 23
That exam was actually good. I expected it to be a lot worse but of couse Paper 1 was still easiert. Feeling confdient.
Reply 24
The grade boundaries are gonna be so bad that paper was easy as hell
Reply 25
What did people get for the last coil question to calculate current
Original post by Sbud
My answers:

Initial velocity = 1.02

Freuency of radio wave = 2.4x10^9

Current in secondary coil = 1.5A

Force = 2500N (bumper)

Force = 21.6 (other one)

Magnetic flux density = 0.125T

Distance travelled by car in 5 sec = 52.5m

Mass of car = 1600kg

Atmospheric pressure = 24kPa

Displacement from diagram = 497m

Sketch of velocity time graph was a straight line from 10 seconds?

Aeroplane was travelling at a constant velocity (zero resultant force in a straight line)


I got 0.5 for initial V
Original post by Sbud
My answers:

Initial velocity = 1.02

Freuency of radio wave = 2.4x10^9

Current in secondary coil = 1.5A

Force = 2500N (bumper)

Force = 21.6 (other one)

Magnetic flux density = 0.125T

Distance travelled by car in 5 sec = 52.5m

Mass of car = 1600kg

Atmospheric pressure = 24kPa

Displacement from diagram = 497m

Sketch of velocity time graph was a straight line from 10 seconds?

Aeroplane was travelling at a constant velocity (zero resultant force in a straight line)


I got all the answers apart from the first question where I got 0.5m/s. That’s what most of the people in my school got.
(edited 10 months ago)
Why was dynamo easier to turn when lamp disconnected
Reply 29
Original post by Username2727
Why was dynamo easier to turn when lamp disconnected

I said less resistance so more current flows through the coil which produces a stronger magnetic field and therefore a stronger force to turn the coil
Original post by Username2727
Why was dynamo easier to turn when lamp disconnected


It was something do with the magnetic field.
Reply 31
Original post by Sbud
My answers:

Initial velocity = 1.02

Freuency of radio wave = 2.4x10^9

Current in secondary coil = 1.5A

Force = 2500N (bumper)

Force = 21.6 (other one)

Magnetic flux density = 0.125T

Distance travelled by car in 5 sec = 52.5m

Mass of car = 1600kg

Atmospheric pressure = 24kPa

Displacement from diagram = 497m

Sketch of velocity time graph was a straight line from 10 seconds?

Aeroplane was travelling at a constant velocity (zero resultant force in a straight line)


What other force one was there?
Reply 32
Original post by Smcgfx
What other force one was there?

I cant remember i wrote my answers on my candidate information slip
(edited 10 months ago)
Reply 33
Do you remember what It was about or how many marks it was?
Reply 34
Original post by Smcgfx
What other force one was there?


Oh it was the cube 4 marks
(edited 10 months ago)
Reply 35
Guys I did a bit crap in this paper in terms of theory could I, still get A7. Because I think I got like a solid 7 or even an 8 in the other paper
Did people get around 30Kpa for the graph pressure question
Reply 37
I got 0.5 for initial velocity
Reply 38
Nah i got 25
Original post by Username2727
Did people get around 30Kpa for the graph pressure question


Yeah 28-30 kPa is correct
You do a curved line of best fit and then u get the answer
There’ll be a range of values anyway, imo 26-30 should be fine
(edited 10 months ago)

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