PMT
Oxfordk Cambridgek andk RSA
Monday 3 June 2019 – Afternoon
k k k k k
A Level Physics A
k k k
H556/03 Unified physics
k k
Timek allowed:k 1k hourk 30k minutes
Youk mustk have:
k
*7686765714*
Thek Data,k Formulaek andk Relationshipsk
Bookletk (sentk withk generalk stationery)
Youk mayk use:
ak scientifick ork graphicalk calculator
ak rulerk (cm/mm)
* H 5 5 6 0 3 *
Pleasek writek clearlyk ink blackk ink.k Dok notk writek ink thek
barcodes.
Centreknumber Candidatek number
Firstk name(s)
Lastk name k
INSTRUCTIONS
• Usek blackk ink.k Youk mayk usek ank HBk pencilk fork graphsk andk diagrams.
• Answerk allk thek questions.
• Wherek appropriate,k yourk answersk shouldk bek supportedk withk working.k Marksk mayk
bek givenk fork ak correctk methodk evenk ifk thek answerk isk incorrect.
• Writek yourk answerk tok eachk questionk ink thek spacek provided.k Ifk additionalk spacek isk
required,k usek thek linedk page(s)k atk thek endk ofk thisk booklet.k Thek questionk number(s)k
mustk bek clearlyk shown.
INFORMATION
• Thek totalk markk fork thisk paperk isk 70.
• Thek marksk fork eachk questionk arek shownk ink bracketsk [k ].
• Qualityk ofk extendedk responsesk willk bek assessedk ink questionsk markedk withk
ank asteriskk (*).
• Thisk documentk consistsk ofk 24k pages.
©k OCRk 2019k OCRk isk ank exemptk
[601/4743/X]k DCk Charity Turnk over
(LEG/SG)k 173679/6
, PMT
2
Answerk allk thek questions
1 Aktoyk rocketk isk madek fromk ak 1.5k litrek plastick bottlek withk finsk attachedk fork stability.
Thek bottlek initiallyk containsk 0.30k litresk ofk water,k leavingk 1.2k litresk ofk trappedk airk atk ak
temperaturek ofk 17k°C.
Ak pumpk isk usedk tok increasek thek pressurek ofk thek airk withink thek plastick bottlek tok 2.4k ×k 105kPak atk thek
startk ofk lift-off.
Fig.k 1.1k showsk thek rocketk atk thek startk ofk lift-
off.k 1k litrek =k 10–3km3
trappe dk air
water
fin
hole
Fig.k 1.1
(a) Calculate,k ink moles,k thek amountk ofk trappedk airk ink thek bottlek atk thek startk ofk lift-off.
amountk ofk airk =................................................... molk [2]
©k OCRk
2019
, PMT
3
(b) Thek trappedk airk pushesk thek waterk downwardsk outk ofk thek hole,k causingk thek rocketk tok
rise.k Thek temperaturek ofk thisk airk remainsk constant.
Calculatek thek finalk pressurek ofk thek trappedk airk justk beforek allk thek waterk hask beenk released.
finalk pressurek = ..................................................... Pak [3]
(c) Herek isk somek datak onk thek toyk rocket.
massk ofk emptyk bottlek andk finsk =k 0.050kkgk
areak ofk cross-sectionk ofk holek =k 1.1k ×k 10–4k
m2k initialk pressurek ofk trappedk airk =k 2.4k ×k
105kPak atmospherick pressurek =k 1.0k ×k 105kPa
densityk ofk waterk =k 1.0k ×k 103kkgkm–3
(i) Usek thek datak abovek tok showk thatk thek upwardsk forcek onk thek rocketk atk thek startk ofk lift-
offk isk aboutk 15kN.
[2]
©k OCRk Turnk over
2019
Oxfordk Cambridgek andk RSA
Monday 3 June 2019 – Afternoon
k k k k k
A Level Physics A
k k k
H556/03 Unified physics
k k
Timek allowed:k 1k hourk 30k minutes
Youk mustk have:
k
*7686765714*
Thek Data,k Formulaek andk Relationshipsk
Bookletk (sentk withk generalk stationery)
Youk mayk use:
ak scientifick ork graphicalk calculator
ak rulerk (cm/mm)
* H 5 5 6 0 3 *
Pleasek writek clearlyk ink blackk ink.k Dok notk writek ink thek
barcodes.
Centreknumber Candidatek number
Firstk name(s)
Lastk name k
INSTRUCTIONS
• Usek blackk ink.k Youk mayk usek ank HBk pencilk fork graphsk andk diagrams.
• Answerk allk thek questions.
• Wherek appropriate,k yourk answersk shouldk bek supportedk withk working.k Marksk mayk
bek givenk fork ak correctk methodk evenk ifk thek answerk isk incorrect.
• Writek yourk answerk tok eachk questionk ink thek spacek provided.k Ifk additionalk spacek isk
required,k usek thek linedk page(s)k atk thek endk ofk thisk booklet.k Thek questionk number(s)k
mustk bek clearlyk shown.
INFORMATION
• Thek totalk markk fork thisk paperk isk 70.
• Thek marksk fork eachk questionk arek shownk ink bracketsk [k ].
• Qualityk ofk extendedk responsesk willk bek assessedk ink questionsk markedk withk
ank asteriskk (*).
• Thisk documentk consistsk ofk 24k pages.
©k OCRk 2019k OCRk isk ank exemptk
[601/4743/X]k DCk Charity Turnk over
(LEG/SG)k 173679/6
, PMT
2
Answerk allk thek questions
1 Aktoyk rocketk isk madek fromk ak 1.5k litrek plastick bottlek withk finsk attachedk fork stability.
Thek bottlek initiallyk containsk 0.30k litresk ofk water,k leavingk 1.2k litresk ofk trappedk airk atk ak
temperaturek ofk 17k°C.
Ak pumpk isk usedk tok increasek thek pressurek ofk thek airk withink thek plastick bottlek tok 2.4k ×k 105kPak atk thek
startk ofk lift-off.
Fig.k 1.1k showsk thek rocketk atk thek startk ofk lift-
off.k 1k litrek =k 10–3km3
trappe dk air
water
fin
hole
Fig.k 1.1
(a) Calculate,k ink moles,k thek amountk ofk trappedk airk ink thek bottlek atk thek startk ofk lift-off.
amountk ofk airk =................................................... molk [2]
©k OCRk
2019
, PMT
3
(b) Thek trappedk airk pushesk thek waterk downwardsk outk ofk thek hole,k causingk thek rocketk tok
rise.k Thek temperaturek ofk thisk airk remainsk constant.
Calculatek thek finalk pressurek ofk thek trappedk airk justk beforek allk thek waterk hask beenk released.
finalk pressurek = ..................................................... Pak [3]
(c) Herek isk somek datak onk thek toyk rocket.
massk ofk emptyk bottlek andk finsk =k 0.050kkgk
areak ofk cross-sectionk ofk holek =k 1.1k ×k 10–4k
m2k initialk pressurek ofk trappedk airk =k 2.4k ×k
105kPak atmospherick pressurek =k 1.0k ×k 105kPa
densityk ofk waterk =k 1.0k ×k 103kkgkm–3
(i) Usek thek datak abovek tok showk thatk thek upwardsk forcek onk thek rocketk atk thek startk ofk lift-
offk isk aboutk 15kN.
[2]
©k OCRk Turnk over
2019
