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NATIONAL
SENIOR CERTIFICATE /
NASIONALE
SENIORSERTIFIKAAT
GRADE/GRAAD 12
JUNE/JUNIE 2024
PHYSICAL SCIENCES P1 /
FISIESE WETENSKAPPE V1
MARKING GUIDELINE / NASIENRIGLYN
MARKS/PUNTE: 150
This marking guideline consists of 11 pages./
Hierdie nasienriglyn bestaan uit 11 bladsye.
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Physical Sciences Grade 12 P1 Eastern Cape June 2024 Memo
Grade 12 Physical Sciences Paper 1 memorandum from the Eastern Cape June Exam 2024 (English), 11 pages. Read online or download the free PDF.
Physical Sciences · Grade 12 · Eastern Cape June Exam · 2024 · English. Memorandum, 11 pages. Read online or download the PDF.
- Subject
- Physical Sciences
- Grade
- Grade 12
- Language
- English
- Document type
- Memorandum
- Year
- 2024
- Exam period
- Eastern Cape June Exam
- Paper
- 1
- Curriculum
- CAPS
- Pages
- 11
- File size
- 616.1 KB
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Eastern Cape June Exam 2024
Questions in this paper
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2 PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 (EC/JUNE/JUNIE 2024)
QUESTION 1/VRAAG 1
1.1 D (2)
1.2 C (2)
1.3 C (2)
1.4 B (2)
1.5 D (2)
1.6 C (2)
1.7 C (2)
1.8 B (2)
1.9 A (2)
1.10 A (2)
[20]
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(EC/JUNE/JUNIE 2024) PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 3
QUESTION 2/VRAAG 2
2.1 The force that opposes the motion of a moving object relative to the
surface.
Die krag wat die beweging van ʼn bewegende voorwerp relatief tot die
oppervlakte teenwerk. (2)
2.2 N
F
T
fk
W (5)
2.3 2.3.1 fk = μk N Any one / Enige een
fk = μk mg - Fsinθ
fk = [0,2 x 20 x 9,8 - 105sin25o ]
fk = 30,33 N (4)
2.3.2 2 kg block / 2 kg-blok
Fnet = ma
Any one / Enige een
Fcosθ – T – f = ma
[105cos25o – T – 30,33 = 20 x 2]
T = 24,83 N (4)
2.3.3 Fnet = ma
T – W = ma
T – mg = ma
24,83 – m x 9,8 = m x 2
m = 2,10 kg (2)
[17]
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4 PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 (EC/JUNE/JUNIE 2024)
QUESTION 3/VRAAG 3
3.1 Each particle in the universe attracts every other body with a force that is directly
proportional to the product of their masses and inversely proportional to the
square of the distance between their centres.
Elke liggaam in die heelal trek elke ander liggaam met ʼn krag direk eweredig aan
die produk van hul masse, en omgekeerd eweredig aan die kwadraat van die
afstand tussen hul middelpunte aan. (2)
3.2 F = Gm1m2
r2
(6,67 × 10-11 )(5,98 × 1024 )(1 500)
F= 2
(2 ×108 )
F = 14,96 N (4)
3.3 EQUAL TO / GELYK AAN. Newton’s 3rd law / Newton se 3de wet.
OR/OF
When object A exerts a force on object B, object B simultaneously exerts an
oppositely directed force on object A of equal magnitude.
Wanneer voorwerp A ʼn krag op voorwerp B uitoefen, sal voorwerp B gelyktydig
ʼn krag van gelyke grootte en in die teenoorgestelde rigting op voorwerp A
uitoefen. (2)
3.4 Fnet = ma
[(4 x 14,98) = 1 500a]
a = 3,99 x 10-2 N
OR/OF
GM
g = r2
6,67 x 10-11 x 5,98 x 1024
g=
(1 x 108 )2
g = 3,99 x 10-2 N (4)
[12]
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(EC/JUNE/JUNIE 2024) PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 5
QUESTION 4/VRAAG 4
4.1 The motion of an object upon which the only force acting on it is gravitational
force.
Die beweging waartydens die enigste krag wat op ʼn voorwerp inwerk
gravitasiekrag is. (2)
4.2 4.2.1 OPTION 1/OPSIE 1
Upwards positive / Downwards positive /
Opwaarts as positief Afwaarts as positief
vf = vi + a∆t vf = vi + a∆t
0 =(15) + (-9,8) ∆t 0 = (-15) + (9,8 ) ∆t
∆t = 1,53 s ∆t = 1,53 s
∆ttotal/totaal = 2 x 1,53 = 3,06 s ∆t total/totaal = 2 x 1,53 = 3,06 s
OPTION 2/OPSIE 2
Upwards positive / Downwards positive /
Opwaarts as positief Afwaarts as positief
vf = vi + a∆t vf = vi + a∆t
-15 = (15) + (-9,8) ∆t 15 = (-15) + (9,8 ) ∆t
∆t = 3,06 s ∆t = 3,06 s (3)
4.2.2 Upwards positive / Downwards positive /
Opwaarts as positief Afwaarts as positief
vf = vi + a∆t vf = vi + a∆t
[0 = (vi) + (-9,8 )(1,03) ] [0 = vi + (9,8 )(1,03) ]
vi = 10,094 m.s-1 upwards/ vi = - 10,094
opwaarts vi = 10,094 m.s-1 upwards /
opwaarts (4)
4.2.3 Upwards positive / Downwards positive /
Opwaarts as positief Afwaarts as positief
Ball A height above the ground / Ball A height above the ground/
Hoogte van bal A bo die grond: Hoogte van bal A bo die grond:
vf 2 = vi2 + 2 a∆y vf 2 = vi2 +2 a∆y
0 = (15)2 + 2 (-9,8) ∆y 0 = (-15)2 + 2 (9,8) ∆y
∆y = 11,48 m ∆y = 11,48 m
Ball B height above the ground/ Ball B height above the ground/
Hoogte van bal B bo die grond: Hoogte van bal B bo die grond:
vf 2 = vi2 +2 a∆y vf 2 = vi2 +2 a∆y
0 = (10,094)2 + 2 (-9,8) ∆y 0 = (- 10,094)2 + 2 (9,8) ∆y
∆y = 5,20 m ∆y = 5,20 m
Height of the building / Hoogte Height of the building / Hoogte
van die gebou: van die gebou :
Height/Hoogte (h) = 11,48 -5,20 Height/Hoogte (h) = 11,48 – 5,20
h = 6,28 m h = 6,28 m (5)
4.2.4 They will have the same velocity. They are both undergoing free fall
motion. /
Hulle sal dieselfde snelheid het. Albei ondergaan vryval beweging. (2)
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6 PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 (EC/JUNE/JUNIE 2024)
4.3 Upwards positive / Downwards positive /
Opwaarts as positief Afwaarts as positief
15
15
v (m.s-1)
10,094
v (m.s-1)
0
0 0,5 0,5 1,53 3,06
1,53 3,06
-10,094
-15
Marking criteria for sketch/ Marks/Punte
Nasienkriteria vir skets
Initial velocity of ball A./
Aanvanklike snelheid vir bal A.
Initial velocity of ball B./
Aanvanklike snelheid vir bal B.
Shape of both graphs with graph
of B starting at 0,5 s/
Vorm van beide grafieke met
beginpunt van grafiek B by 0,5 s
Time at maximum height/
Tyd by maksimum hoogte
Final velocity and time when
balls reach the ground/
Finale snelheid en tyd wanneer
die balle die grond bereik (5)
[21]
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(EC/JUNE/JUNIE 2024) PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 7
QUESTION 5/VRAAG 5
5.1 A system in which the net external force is equal to zero./
ʼn Stelsel waar die netto eksterne krag gelyk aan nul is. (2)
5.2 The total linear momentum in an isolated system remains constant (is
conserved).
Die totale lineêre momentum in ʼn geїsoleerde stelsel bly konstant (is
behoue). (2)
5.3 5.3.1 Σpi = Σpf
Any one/ Enige een
m1vf1 + m2vf2 = (m1 + m2) v i
1 500 x 20 + 0 = (1 500 + 900) v i
v i = 12,5 m.s -1 (4)
5.3.2 Fnet. ∆t = ∆p Fnet. ∆t = ∆p
Fnet . 0,2 ✓ = 900 (12,5 – 0) Fnet . 0,2 ✓ = 1 500 (12,5 – 20)
Fnet = 56 250 N left/links Fnet = 56 250 N left/links (4)
5.4 Ek = ½mv2
Eki = ½ x 1 500 x 202 + 0
Eki = 300 000 J
Ekf = ½ x 1 500 x 12,52 + ½ x 900 x 12,52
Ekf = 187 500 J
Eki ≠ Ekf
Inelastic collision / Onelastiese botsing (5)
5.5 The bubble wrap provides a soft surface which increases the contact time of
the collision, and decreases the net force exerted on the equipment. /
Die borrelplastiek verskaf ʼn sagte oppervlakte wat die kontaktyd van die botsing
verhoog en verlaag die netto krag wat op die toerusting uitgeoefen word. (3)
[20]
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8 PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 (EC/JUNE/JUNIE 2024)
QUESTION 6/VRAAG 6
6.1
N
f
✓✓✓
Fg (3)
6.2 Wnet = ∆ EK
Wf + WFg = ½ mv2f – ½ mv2i Any one / Enige een
Wf + (-∆Ep) = ½ mv2f – ½ mv2i
10 10
[50( sin30º ) x cos180o] + 60 x 9,8sin30o( sin30º )cos0o = ½ x 60 x vf2 – 0
vf = 12,75 m.s-1
OR/OF
Wnc = ∆Ep + ∆Ek
Wf = mgh2 – mgh1 + ½ mv2f – ½ mv2i Any one / Enige een
10
[50( 𝑠𝑖𝑛𝜃 ) x cos180o] = 0 – 60 x 9,8 x 10 + ½ x 60 x vf2 – 0
vf = 12,75 m.s-1 (6)
6.3 6.3.1 The net work done on an object is equal to the change in kinetic energy
of an object./
Die netto arbeid wat op ʼn voorwerp verrig is, is gelyk aan die verandering
in kinetiese energie van ʼn voorwerp. (2)
6.3.2 Wnet = ∆ EK
Wf = ½ mvf2 – ½ mvi2 Any one / Enige een
f.∆xcosθ = ½ mv2f – ½ mv2i
(0,15 x 60 x 9,8) x ∆xcos180o] = 0 – ½ x 60 x 12,742
∆x = 55,29 m (5)
[16]
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(EC/JUNE/JUNIE 2024) PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 9
QUESTION 7/VRAAG 7
7.1 A force in which the work done by the net force depends on the path
taken./
ʼn Krag waarvoor die arbeid verrig deur die netto krag afhanklik is van die roete
wat gevolg word. (2)
7.2 (Air) friction and tension/
(Lug) wrywing en spanning (2)
7.3
T
✓✓✓
Ff
w (3)
7.4 OPTION 1/OPSIE 1
Wnet = ΔEk
T.∆xcosθ + f .∆ x cosθ = ΔEk Any one / Enige een
T.∆xcosθ + f .∆ x cosθ = ½mvf2 – ½mvi2
950 x 30 cos180° + f x 30 cos180° + 150 x 9,8 x 30cos0° = 0
f = 520 N
OPTION 2/OPSIE 2
Wnc = ∆Ep + ∆Ek
Any one / Enige een
Wf + WT = mgh2 – mgh1 + ½ mvf2 – ½ mvi2
f x 30cos180° + 950 x 30cos180° = 0 – 150 x 9,8 x 30 + 0
f = 520 N (5)
[12]
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10 PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 (EC/JUNE/JUNIE 2024)
QUESTION 8/VRAAG 8
8.1 The Doppler Effect is the change in the observed frequency (or pitch) of the sound
detected by a listener because the sound source and the listener have different
velocities relative to the medium of sound propagation. /
Die Doppler-effek is die verandering in frekwensie (toonhoogte) van die klank
waargeneem deur ʼn luisteraar omdat die klankbron en die luisteraar verskillende
snelhede relatief tot die medium waarin die klank voortgeplant word het.
OR / OF
The apparent change in the (observed) frequency when there is relative motion
between the sound source and the observer.
Die skynbare verandering in (waargenome) frekwensie (toonhoogte) as daar
relatiewe beweging tussen die bron en die waarnemer (luisteraar) is. (2)
8.2 As the observer moves towards the sound source the wavefronts ahead become
compressed, the wavelength decreases and the frequency increases. /
Soos die waarnemer na die klankbron beweeg, word die golffront saamgepers,
die golflengte neem af en die frekwensie neem toe. (3)
8.3 v ± vL
fL = fs
v ± vs
Any one / Enige een
v + vL
fL = fs
v
340 + vL
2 500 = x 2 450
340
vL = 6,94 m·s-1 (5)
8.4 8.4.1 Stays the same / Bly dieselfde (1)
8.4.2 Decreases / Verlaag (1)
8.5 8.5.1 Increase / Verhoog (1)
8.5.2 Stays the same / Bly dieselfde (1)
8.5.3 Stays the same / Bly dieselfde (1)
8.6 To measure the heart beat of a foetus in the womb. /
To measure the speed of blood in the veins. /
Om die hartklop van ʼn fetus in die baarmoeder te meet.
Om die spoed van bloed in die are te meet. (2)
[17]
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(EC/JUNE/JUNIE 2024) PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 11
QUESTION 9/VRAAG 9
9.1 The electrostatic force between two-point charges is directly proportional to the
product of the magnitude of the charges, and inversely proportional to the square
of the distance between the charges. /
Die elektrostatiese krag tussen twee puntladings is direk eweredig aan die produk
van die groottes van die ladings, en omgekeerd eweredig aan die kwadraat van
die afstand tussen hulle. (2)
9.2 NEGATIVE / NEGATIEF (2)
9.3 9.3.1 kQ1 Q2
F=
r2
9 × 109 × 2 × 10-6 × Q
0,012 =
2,52
Q = 4,17 x 10-6 C (4)
9.3.2 The electrostatic force experienced per unit positive charge. /
Die elektrostatiese krag per eenheidspositiewe-lading ervaar. (2)
9.3.3 kQ
E=
r2
9 × 109 × 2 × 10-6
E1 =
1,52
E1 = 8 000 N.C-1 Left/Link
9 x 109 x 4,17 x 10-6
E2 =
1,02
E2 = 37 530 N.C-1 Right/Regs
Enet = E2 – E1
Enet = 37 530 – 8 000
Enet = 29 530 N.C-1 Right/Regs (5)
[15]
TOTAL/TOTAAL: 150
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