AQA GCSE Combined Science: Trilogy - Physics Paper 2 (Higher) 8464/P/2H [Exam Chat]

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Mythical Pingu
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AQA GCSE Combined Science: Trilogy - Physics Paper 2 (Higher) 8464/P/2H - 23 Jun 2022 [Exam Chat]

Here is the exam discussion for this exam. Talk anything from how to revise for it, specific questions or time management :ahee:

Date/Time: Thursday 23rd June AM
Length: 1h15


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:goodluck: with revision and exams :work:
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hannah.06
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#2
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https://www.youtube.com/watch?v=eE7OPL7pesA - Required practical activity 21: investigate how the amount of infrared radiation absorbed or radiated by a surface depends on the nature of that surface. (Free Science Lessons)

https://www.youtube.com/watch?v=iig9LvZ1bv0 - AQA Physics Paper 2 Revision - 23rd June 2022 - GCSE Combined Science Higher Exam (by Primrose Kitten)

Major topics by Free Science Lessons:
https://www.youtube.com/watch?v=xxK8N23nx9M - Forces and their interactions
https://www.youtube.com/watch?v=DkCw2C-DkT0 - Describing motion along a line
https://www.youtube.com/watch?v=_W3VbonFNcw (1st) https://www.youtube.com/watch?v=SqdCCxv9YzI (2nd) https://www.youtube.com/watch?v=wANmggaC9pY (3rd) - Forces, accelerations and Newton's Laws of motion
https://www.youtube.com/watch?v=ZtQhlwPxE28 - Momentum
https://www.youtube.com/watch?v=u5vkYjV1V1A - Electromagnetic waves
https://www.youtube.com/watch?v=GNLhSKZh-jM - The motor effect
Last edited by hannah.06; 1 week ago
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jamest0394q
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#3
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theres not even that much to revise for this its heavily based on calculations icl
Last edited by jamest0394q; 1 week ago
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jamest0394q
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#4
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#4
i revised the steps for the emitting infrared practical but I haven't seen any suitable descriptions for the absorption one so that can't be a 6 marker can it?
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hannah.06
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Infrared Required Practicals:
1. Fill the Leslie's cube with hot water
2. Point the infrared detector at each of the four surfaces and record the amount of infrared emitted
3. It's very important that we keep the same distance between the Leslie's cube and the infrared detector as it makes the measurements repeatable
4. Matt black surface emits the most infrared radiation, followed by the shiny black, then white, then shiny metallic emitting the least amount of infrared radiation
5. If we do not have an infrared detector, then we can use a thermometer with the bulb painted black, however the resolution of the thermometer is less than the infrared detector. The resolution is the smallest change that can be detected

Absorbent of infrared:
1. We have an infrared heater and on either side we have two metal plates, one plate has been painted with shiny metallic paint and other plate with matt black paint.
2. On the other side of the plates, we have used vaseline to attach a drawing pin
3. We now switch on the heater and start timing
4. The temperature of the metal plates increases as they absorb infrared
5. We record the time it takes for the vaseline to melt and the drawing pins to fall off
6. What we find is that the drawing pin falls off the matt black plate first because matt black surfaces absorb more infrared than shiny metallic surfaces
Last edited by hannah.06; 1 week ago
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jamest0394q
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#6
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(Original post by hannah.06)
Infrared Required Practicals:
1. Fill the Leslie's cube with hot water
2. Point the infrared detector at each of the four surfaces and record the amount of infrared emitted
3. It's very important that we keep the same distance between the Leslie's cube and the infrared detector as it makes the measurements repeatable
4. Matt black surface emits the most infrared radiation, followed by the shiny black, then white, then shiny metallic emitting the least amount of infrared radiation
5. If we do not have an infrared detector, then we can use a thermometer with the bulb painted black, however the resolution of the thermometer is less than the infrared detector. The resolution is the smallest change that can be detected

Absorbent of infrared:
1. We have an infrared heater and on either side we have two metal plates, one plate has been painted with shiny metallic paint and other plate with matt black paint.
2. On the other side of the plates, we have used vaseline to attach a drawing pin
3. We now switch on the heater and start timing
4. The temperature of the metal plates increases as they absorb infrared
5. We record the time it takes for the vaseline to melt and the drawing pins to fall off
6. What we find is that the drawing pin falls off the matt black plate first because matt black surfaces absorb more infrared than shiny metallic surfaces
its not pins in the textbook for some reason
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hannah.06
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(Original post by jamest0394q)
its not pins in the textbook for some reason
They often change it in the exam or keep it the same, like the pondweed practical for biology paper 1, in the exam it was different colour lights, but it could've been temperature, light intensity/distance from light etc
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Mythical Pingu
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#8
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How did people find the exam?
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Lemozzz2
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#9
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(Original post by Mythical Pingu)
How did people find the exam?
Ok hbu
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hannah.06
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#10
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It was good except question 6 about braking distance and stuff, which is on the not assessed list
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tf9387
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(Original post by hannah.06)
It was good except question 6 about braking distance and stuff, which is on the not assessed list
The distance was 50m right? If they give full marks I'd understand but a little annoyed since I think I got that question
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rachaelm1389
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for the ones about calculating average speed etc did u have to round the numbers cos it said average
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Lemozzz2
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#13
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#13
(Original post by tf9387)
The distance was 50m right? If they give full marks I'd understand but a little annoyed since I think I got that question
I got 80 hmmmm I think I might’ve got it wrong ….
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Janette150
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#14
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(Original post by Lemozzz2)
I got 80 hmmmm I think I might’ve got it wrong ….
I’ve got 80 too
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user93_
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#15
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#15
(Original post by tf9387)
The distance was 50m right? If they give full marks I'd understand but a little annoyed since I think I got that question
i cant remember which is which but i remember in the braking distance question for one i got 80N, and something else 40
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aksi07
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#16
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(Original post by user93_)
i cant remember which is which but i remember in the braking distance question for one i got 80N, and something else 40
Yh same
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aksi07
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#17
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#17
Did anyone get 1.2m for the 6 marker calculation?
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user93_
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#18
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I got 1.225 but I got 1.2 for another question
(Original post by aksi07)
Did anyone get 1.2m for the 6 marker calculation?
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asdasdasd231
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(Original post by user93_)
I got 1.225 but I got 1.2 for another question
Me too.
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unicornpopstar4
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(Original post by user93_)I got 1.225 but I got 1.2 for another question

i got the sameeeee
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