AS
PHYSICS
7407/2
Paper 2 I
Mark scheme
I
June 2021
I
Version: I1.0 IFinal
*216A7407/2/MS*
, MARK ISCHEME I– IAS IPHYSICS I– I7407/2 I– IJUNE I2021
Mark Ischemes Iare Iprepared Iby Ithe ILead IAssessment IWriter Iand Iconsidered, Itogether Iwith Ithe IrelevantIquestions, Iby
Ia Ipanel Iof Isubject Iteachers. IThis Imark Ischeme Iincludes Iany Iamendments Imade Iat Ithe Istandardisation Ievents Iwhich
Iall Iassociates Iparticipate Iin Iand Iis Ithe Ischeme Iwhich Iwas Iused Iby Ithem IinIt his Iexamination. IThe Istandardisation
Iprocess Iensures Ithat Ithe Imark Ischeme Icovers Ithe Istudents’ Iresponses Ito Iquestions Iand Ithat Ievery Iassociate
Iunderstands Iand Iapplies Iit Iin Ithe Isame Icorrect Iway.
As Ipreparation Ifor Istandardisation Ieach Iassociate Ianalyses Ia Inumber Iof Istudents’ Iscripts. IAlternativeIa nswers Inot
Ialready Icovered Iby Ithe Imark Ischeme Iare Idiscussed Iand Ilegislated Ifor. IIf, Iafter Ithe Istandardisation Iprocess, Iassociates
Iencounter Iunusual Ianswers Iwhich Ihave Inot Ibeen Iraised Ithey IareIr equired Ito Irefer Ithese Ito Ithe ILead IExaminer.
It Imust Ibe Istressed Ithat Ia Imark Ischeme Iis Ia Iworking Idocument, Iin Imany Icases Ifurther Ideveloped Iand Iexpanded Ion
Ithe Ibasis Iof Istudents’ Ireactions Ito Ia Iparticular Ipaper. IAssumptions Iabout Ifuture Imark Ischemes Ion Ithe Ibasis Iof Ione
Iyear’s Idocument Ishould Ibe Iavoided; Iwhilst Ithe Iguiding Iprinciples Iof Iassessment Iremain Iconstant, Idetails Iwill
Ichange, Idepending Ion Ithe Icontent Iof Ia Iparticular IexaminationIpaper.
Further Icopies Iof Ithis Imark Ischeme Iare Iavailable Ifrom Iaqa.org.uk
Copyright Iinformation
For Iconfidentiality Ipurposes Iacknowledgements Iof Ithird-party Imaterial Iare Ipublished Iin Ia Iseparate Ibooklet Iwhich Iis Iavailable Ifor Ifree Idownload Ifrom
Iwww.aqa.org.uk Iafter Ithe Ilive Iexamination Iseries.
Copyright I© I2021 IAQA Iand Iits Ilicensors. I All Irights Ireserved.
2
, MARK ISCHEME I– IAS IPHYSICS I– I7407/2 I– IJUNE I2021
Physics - Mark scheme instructions to examiners
I I I I I I
1. General
The Imark Ischeme Ifor Ieach Iquestion Ishows:
the Imarks Iavailable Ifor Ieach Ipart Iof Ithe Iquestion
the Itotal Imarks Iavailable Ifor Ithe Iquestion
the Itypical Ianswer Ior Ianswers Iwhich Iare Iexpected
extra Iinformation Ito Ihelp Ithe IExaminer Imake Ihis Ior Iher Ijudgement Iand Ihelp Ito Idelineate Iwhat Iis Iacceptable Ior
Inot Iworthy Iof Icredit Ior, Iin Idiscursive Ianswers, Ito Igive Ian Ioverview Iof Ithe Iarea Iin Iwhich Ia Imark Ior Imarks Imay Ibe
Iawarded.
The Iextra Iinformation Iis Ialigned Ito Ithe Iappropriate Ianswer Iin Ithe Ileft-hand Ipart Iof Ithe Imark Ischeme Iand Ishould
Ionly Ibe Iapplied Ito Ithat Iitem Iin Ithe Imark Ischeme.
At Ithe Ibeginning Iof Ia Ipart Iof Ia Iquestion Ia Ireminder Imay Ibe Igiven, Ifor Iexample: Iwhere Iconsequential Imarking Ineeds
Ito Ibe Iconsidered Iin Ia Icalculation; Ior Ithe Ianswer Imay Ibe Ion Ithe Idiagram Ior Iat Ia Idifferent Iplace Ion Ithe Iscript.
In Igeneral Ithe Iright-hand Iside Iof Ithe Imark Ischeme Iis Ithere Ito Iprovide Ithose Iextra Idetails Iwhich Iconfuse Ithe Imain
Ipart Iof Ithe Imark Ischeme Iyet Imay Ibe Ihelpful Iin Iensuring Ithat Imarking Iis Istraightforward Iand Iconsistent.
2. Emboldening
2.1 In I a I list I of I acceptable I answers I where I more I than I one I mark I is I available I ‘any I two I from’ I is I used,Iwith
Ithe Inumber Iof Imarks Iemboldened. I Each Iof Ithe Ifollowing Ibullet Ipoints Iis Ia Ipotential Imark.
2.2 A Ibold Iand Iis Iused Ito Iindicate Ithat Iboth Iparts Iof Ithe Ianswer Iare Irequired Ito Iaward Ithe Imark.
2.3 Alternative Ianswers Iacceptable Ifor Ia I mark Iare Iindicated Iby Ithe Iuse I of I or. I Different Iterms I in ItheImark
Ischeme Iare Ishown Iby Ia I/ I; Ieg Iallow Ismooth I/ Ifree Imovement.
3. Marking points I
3.1 Marking of listsI I
This Iapplies Ito Iquestions Irequiring Ia Iset Inumber Iof Iresponses, Ibut Ifor Iwhich Icandidates Ihave Iprovided Iextra
Iresponses. I The Igeneral Iprinciple Ito Ibe Ifollowed Iin Isuch Ia Isituation Iis Ithat I‘right I+ Iwrong I= Iwrong’.
Each Ierror I/ Icontradiction Inegates Ieach Icorrect Iresponse. ISo, Iif Ithe Inumber Iof Ierrors I/ Icontradictions Iequals Ior
Iexceeds Ithe Inumber Iof Imarks Iavailable Ifor Ithe Iquestion, Ino Imarks Ican Ibe Iawarded.
However, Iresponses Iconsidered Ito Ibe Ineutral I(often Iprefaced Iby I‘Ignore’ Iin Ithe Imark Ischeme) Iare Inot Ipenalised.
3.2 Marking procedure for calculations
I I I
Full Imarks Ican Iusually Ibe Igiven Ifor Ia Icorrect Inumerical Ianswer Iwithout Iworking Ishown Iunless Ithe Iquestion Istates
I‘Show Iyour Iworking’. IHowever, Iif Ia Icorrect Inumerical Ianswer Ican Ibe Ievaluated Ifrom Iincorrect Iphysics Ithen
Iworking Iwill Ibe Irequired. IThe Imark Ischeme Iwill Iindicate Iboth Ithis Iand Ithe Icredit I(if Iany) Ithat Ican Ibe Iallowed Ifor
Ithe Iincorrect Iapproach.
3
PHYSICS
7407/2
Paper 2 I
Mark scheme
I
June 2021
I
Version: I1.0 IFinal
*216A7407/2/MS*
, MARK ISCHEME I– IAS IPHYSICS I– I7407/2 I– IJUNE I2021
Mark Ischemes Iare Iprepared Iby Ithe ILead IAssessment IWriter Iand Iconsidered, Itogether Iwith Ithe IrelevantIquestions, Iby
Ia Ipanel Iof Isubject Iteachers. IThis Imark Ischeme Iincludes Iany Iamendments Imade Iat Ithe Istandardisation Ievents Iwhich
Iall Iassociates Iparticipate Iin Iand Iis Ithe Ischeme Iwhich Iwas Iused Iby Ithem IinIt his Iexamination. IThe Istandardisation
Iprocess Iensures Ithat Ithe Imark Ischeme Icovers Ithe Istudents’ Iresponses Ito Iquestions Iand Ithat Ievery Iassociate
Iunderstands Iand Iapplies Iit Iin Ithe Isame Icorrect Iway.
As Ipreparation Ifor Istandardisation Ieach Iassociate Ianalyses Ia Inumber Iof Istudents’ Iscripts. IAlternativeIa nswers Inot
Ialready Icovered Iby Ithe Imark Ischeme Iare Idiscussed Iand Ilegislated Ifor. IIf, Iafter Ithe Istandardisation Iprocess, Iassociates
Iencounter Iunusual Ianswers Iwhich Ihave Inot Ibeen Iraised Ithey IareIr equired Ito Irefer Ithese Ito Ithe ILead IExaminer.
It Imust Ibe Istressed Ithat Ia Imark Ischeme Iis Ia Iworking Idocument, Iin Imany Icases Ifurther Ideveloped Iand Iexpanded Ion
Ithe Ibasis Iof Istudents’ Ireactions Ito Ia Iparticular Ipaper. IAssumptions Iabout Ifuture Imark Ischemes Ion Ithe Ibasis Iof Ione
Iyear’s Idocument Ishould Ibe Iavoided; Iwhilst Ithe Iguiding Iprinciples Iof Iassessment Iremain Iconstant, Idetails Iwill
Ichange, Idepending Ion Ithe Icontent Iof Ia Iparticular IexaminationIpaper.
Further Icopies Iof Ithis Imark Ischeme Iare Iavailable Ifrom Iaqa.org.uk
Copyright Iinformation
For Iconfidentiality Ipurposes Iacknowledgements Iof Ithird-party Imaterial Iare Ipublished Iin Ia Iseparate Ibooklet Iwhich Iis Iavailable Ifor Ifree Idownload Ifrom
Iwww.aqa.org.uk Iafter Ithe Ilive Iexamination Iseries.
Copyright I© I2021 IAQA Iand Iits Ilicensors. I All Irights Ireserved.
2
, MARK ISCHEME I– IAS IPHYSICS I– I7407/2 I– IJUNE I2021
Physics - Mark scheme instructions to examiners
I I I I I I
1. General
The Imark Ischeme Ifor Ieach Iquestion Ishows:
the Imarks Iavailable Ifor Ieach Ipart Iof Ithe Iquestion
the Itotal Imarks Iavailable Ifor Ithe Iquestion
the Itypical Ianswer Ior Ianswers Iwhich Iare Iexpected
extra Iinformation Ito Ihelp Ithe IExaminer Imake Ihis Ior Iher Ijudgement Iand Ihelp Ito Idelineate Iwhat Iis Iacceptable Ior
Inot Iworthy Iof Icredit Ior, Iin Idiscursive Ianswers, Ito Igive Ian Ioverview Iof Ithe Iarea Iin Iwhich Ia Imark Ior Imarks Imay Ibe
Iawarded.
The Iextra Iinformation Iis Ialigned Ito Ithe Iappropriate Ianswer Iin Ithe Ileft-hand Ipart Iof Ithe Imark Ischeme Iand Ishould
Ionly Ibe Iapplied Ito Ithat Iitem Iin Ithe Imark Ischeme.
At Ithe Ibeginning Iof Ia Ipart Iof Ia Iquestion Ia Ireminder Imay Ibe Igiven, Ifor Iexample: Iwhere Iconsequential Imarking Ineeds
Ito Ibe Iconsidered Iin Ia Icalculation; Ior Ithe Ianswer Imay Ibe Ion Ithe Idiagram Ior Iat Ia Idifferent Iplace Ion Ithe Iscript.
In Igeneral Ithe Iright-hand Iside Iof Ithe Imark Ischeme Iis Ithere Ito Iprovide Ithose Iextra Idetails Iwhich Iconfuse Ithe Imain
Ipart Iof Ithe Imark Ischeme Iyet Imay Ibe Ihelpful Iin Iensuring Ithat Imarking Iis Istraightforward Iand Iconsistent.
2. Emboldening
2.1 In I a I list I of I acceptable I answers I where I more I than I one I mark I is I available I ‘any I two I from’ I is I used,Iwith
Ithe Inumber Iof Imarks Iemboldened. I Each Iof Ithe Ifollowing Ibullet Ipoints Iis Ia Ipotential Imark.
2.2 A Ibold Iand Iis Iused Ito Iindicate Ithat Iboth Iparts Iof Ithe Ianswer Iare Irequired Ito Iaward Ithe Imark.
2.3 Alternative Ianswers Iacceptable Ifor Ia I mark Iare Iindicated Iby Ithe Iuse I of I or. I Different Iterms I in ItheImark
Ischeme Iare Ishown Iby Ia I/ I; Ieg Iallow Ismooth I/ Ifree Imovement.
3. Marking points I
3.1 Marking of listsI I
This Iapplies Ito Iquestions Irequiring Ia Iset Inumber Iof Iresponses, Ibut Ifor Iwhich Icandidates Ihave Iprovided Iextra
Iresponses. I The Igeneral Iprinciple Ito Ibe Ifollowed Iin Isuch Ia Isituation Iis Ithat I‘right I+ Iwrong I= Iwrong’.
Each Ierror I/ Icontradiction Inegates Ieach Icorrect Iresponse. ISo, Iif Ithe Inumber Iof Ierrors I/ Icontradictions Iequals Ior
Iexceeds Ithe Inumber Iof Imarks Iavailable Ifor Ithe Iquestion, Ino Imarks Ican Ibe Iawarded.
However, Iresponses Iconsidered Ito Ibe Ineutral I(often Iprefaced Iby I‘Ignore’ Iin Ithe Imark Ischeme) Iare Inot Ipenalised.
3.2 Marking procedure for calculations
I I I
Full Imarks Ican Iusually Ibe Igiven Ifor Ia Icorrect Inumerical Ianswer Iwithout Iworking Ishown Iunless Ithe Iquestion Istates
I‘Show Iyour Iworking’. IHowever, Iif Ia Icorrect Inumerical Ianswer Ican Ibe Ievaluated Ifrom Iincorrect Iphysics Ithen
Iworking Iwill Ibe Irequired. IThe Imark Ischeme Iwill Iindicate Iboth Ithis Iand Ithe Icredit I(if Iany) Ithat Ican Ibe Iallowed Ifor
Ithe Iincorrect Iapproach.
3
