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NATIONAL
SENIOR CERTIFICATE/
NASIONALE SENIOR
SERTIFIKAAT
GRADE/GRAAD 11
NOVEMBER 2022
PHYSICAL SCIENCES P1/
FISIESE WETENSKAPPE V1
MARKING GUIDELINE/NASIENRIGLYN
MARKS/PUNTE: 100
This marking guideline consists of 10 pages./
Hierdie nasienriglyn bestaan uit 10 bladsye.
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Physical Sciences Grade 11 P1 2022 Memo (Eng)
Grade 11 Physical Sciences Paper 1 memorandum from the Eastern Cape November 2022 (English), 10 pages. Read online or download the free PDF.
Physical Sciences · Grade 11 · Eastern Cape November · 2022 · English. Memorandum, 10 pages. Read online or download the PDF.
- Subject
- Physical Sciences
- Grade
- Grade 11
- Language
- English
- Document type
- Memorandum
- Year
- 2022
- Exam period
- Eastern Cape November
- Paper
- 1
- Curriculum
- CAPS
- Pages
- 10
- File size
- 843.6 KB
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This exam
Eastern Cape November 2022
Questions in this paper
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2 PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 (EC/NOVEMBER 2022)
QUESTION/VRAAG 1: MULTIPLE-CHOICE QUESTIONS/
MEERVOUDIGEKEUSE-VRAE
1.1 C (2)
1.2 B (2)
1.3 A (2)
1.4 A (2)
1.5 B (2)
1.6 C (2)
1.7 D (2)
[14]
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(EC/NOVEMBER 2022) PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 3
QUESTION/VRAAG 2
2.1 The vector sum of two or more vectors.
Die vektor som van twee of meer vektore.
OR/OF
A single vector having the same effect as two or more vectors acting
together./
Is ʼn enkele vektor wat dieselfde effek het as twee of meer vektore wat saam
werk. (2)
2.2
35o 1 440 N
W
1 284,95 N
40o
Marking criteria/Nasienkriteria
W vector drawn and labelled.
W vektor getrek en byskrif
1 440 N vector drawn and labelled
1 440 N vektor getrek en byskrif
1 284,95 N vector drawn and labelled
1 284,95 N vektor getrek en byskrif
Both angles labelled
Beide hoeke benoem (4)
2.3 OPTION 1/OPSIE 1
W 1 440
° =
sin105 sin40°
W = 2 163,91 N
OPTION 2/OPSIE 2
W 1 284,95
° =
sin105 sin35°
W = 2 163,91 N
OPTION 3/OPSIE 3
1 440 sin55o + 1 284,95 sin50o – W = 0
W = 2 163,91 N (3)
[9]
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4 PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 (EC/NOVEMBER 2022)
QUESTION/VRAAG 3
3.1 The force or the component of a force which a surface exerts on an object in
contact with it, and which is perpendicular to the surface.
Die krag of komponent van ʼn krag wat die oppervlakte uitoefen op ʼn voorwerp
waarin dit in kontak is en loodreg aan die oppervlakte is. (2)
3.2
N N
FY
f F
f FX
T
T
W
W
Mark awarded for arrow and label. Punt vir beide pyl en byskrif toegeken.
Do not penalise for length of arrows since drawing is not drawn to scale./
Moenie vir die lengte van die pyltjie penaliseer nie aangesien die tekening nie
volgens skaal geteken is nie.
4
Any other additional force(s)
5
4
Enige addisionele kragte
5
4
If force(s) do not make contact with body. Max.
5
4
Indien krag(te) nie met die voorwerp kontak maak nie. Maks. (5)
5
3.3.1 Fnet = ma
T – W = ma Any ONE/Enige EEN
T - 2 x 9,8 = 2 x 2
T = 23,6 N (3)
3.3.2 Fnet = ma
FX – T – f = ma Any ONE/Enige EEN
Fcosθ – T – f = ma
Fcos20° – 23,6 – 10 = 5 x 2
F = 46,40 N (4)
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(EC/NOVEMBER 2022) PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 5
3.3.3 N = W – FY
N = 5 x 9,8 – 46,40 sin20o
N = 33,13 N
fk = µkN
10 = µk x 33,13
µk = 0,30 (4)
[18]
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6 PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 (EC/NOVEMBER 2022)
QUESTION/VRAAG 4
4.1 When a resultant/net force acts on an object, the object will accelerate in the
direction of the resultant/net force with an accelereation that is directly
proportional to the (resultant/net) force and inversely proportional to the
mass of the object.
Wanneer ʼn netto/resulterende krag op ʼn voorwerp in werk sal die voorwerp
versnel in die rigting van die netto/resulterende krag. Die versnelling is direk
eweredig aan die netto/resulterende krag en omgekeerd eweredig aan die
massa van die voorwerp. (2)
4.2 OPTION 1/OPSIE 1 OPTION 2/OPSIE 2
Fnet = ma Fnet = ma
Any ONE/
T – W = ma T – W = ma
Enige EEN
1 205,4 – W = 0 Any ONE/ T – mg = ma
W = 1 205,4 Enige EEN ✓ 1 205,4 – m x 9,8 = 0
W = mg 1 205,4 = m x 9,8
1 205,4 = m x 9,8 m = 123 kg
m = 123 kg
(4)
4.3 Positive marking from 4.2./Positiewe nasien vanaf 4.2
Fnet = ma
Any ONE/Enige EEN
T – W = ma
T – 1 205,4 = 123 x 2,25
T = 1 482,15 N (4)
[10]
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(EC/NOVEMBER 2022) PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 7
QUESTION/VRAAG 5
5.1 Each particle in the universe attracts every other particle with a gravitational
force that is directly proportional to the product of their masses and
inversely proportional to the square of the distance between their centres.
Elke deeltjie in die heelal trek elke ander deeltjie met ʼn gravitasiekrag wat
direk eweredig is aan die produk van hul massas en omgekeerd eweredig aan
die vierkant van die afstand tussen hul middelpunte. (2)
5.2 GM 1M 2
F=
d2
6,67 x 10-11 x 5,98 x 1024 x 7,5 x 1022
F= 8 2
(3,84 x 10 )
F = 2,03 x 1020 N (4)
5.3 2,03 x 1020 N. (Positive marking from 5.2 / Positiewe nasien vanaf 5.2)
According to Newton’s Third Law, (When object A exerts a force on object B,
object B simultaneously exerts a force of equal magnitude on object A in the
opposite direction). The moon and the earth will exert equal force on each
other but in opposite directions.
Volgens Newton se Derde Wet (Wanneer voorwerp A ʼn krag op voorwerp B
uitoefen, oefen voorwerp B ʼn gelyktydige krag op voorwerp A wat gelyk is aan
grootte maar in die teenoorgestelde rigting). Die maan en aarde sal gelyke
kragte op mekaar uitoefen maar in die teenoorgestelde rigting. (2)
[8]
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8 PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 (EC/NOVEMBER 2022)
QUESTION/VRAAG 6
6.1.1 Q
n=
qe
4,5 x 10 -9
n=
1,6 x 10 -19
n = 2,81 x 1010 (electrons/elektrone) (3)
6.1.2
T
FE
W
(3)
Mark awarded for both arrow and label. / Punt vir beide pyl en byskrif.
Do not penalise for length of arrows since drawing is not drawn to scale.
Moenie vir die lengte van die pyltjie penaliseer nie aangesien die tekening
nie volgens skaal geteken is nie.
2
Any other additional force(s)
3
2
Enige addisionele kragte
3
2
If force(s) do not make contact with body. Max.
3
2
Indien krag(te) nie met die voorwerp kontak maak nie. Maks.
3
6.1.3 The magnitude of the electrostatic force exerted by two-point charges (Q1 and
Q2) on each other is directly proportional to the product of the magnitudes of
the charges and inversely proportional to the square of the distance (r)
between them.
Die grootte van die elektrostatiese krag tussen twee puntladings (Q1 en Q2)
is direk eweredig aan die produk van die ladings en omgekeerd eweredig
aan die vierkant van die afstand (r) tussen hul middelpunte. (2)
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(EC/NOVEMBER 2022) PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 9
6.1.4 Fnet = ma
T – FE – W = ma Any one/Enige EEN
✓
kQ 1Q 2
T–( ) – W = ma
r2
9 x 10 9 x 4,5 x 10 -9 x 2,5 x 10 -9
T–( ) – 5 x 10-3 x 9,8 = 0
(3 x 10 -2 ) 2
T = 0,049 N (5)
6.2.1 The electric field at a point is the electrostatic force experienced per unit
positive charge placed at that point.
Die elektriese veld by ʼn punt is die elektrostatiese krag ervaar per eenheid
positiewe lading by ʼn punt. (2)
6.2.2
(3)
Marking criteria/Nasienkriteria
Shape of the field/ Vorm van die veld
Direction of field lines./ Rigting van veldlyne
Lines not starting from the same point and
not touching each other./
Lyne begin nie by dieselfde punt en raak nie
aan mekaar nie.
6.2.3 kq
E=
r2
9 x 10 9 x 45 x 10 -6
E1 = = 6 840 000 N.C-1 right/regs
0,25 2
9 x 10 9 x 30 x 10 -6
E2 = = 27 000 000 N.C-1 left/links
0,12
Enet = E1 + E2
Enet = 6 840 000 - 27 000 000
Enet = -20 160 000
Enet = 20 160 000 N.C-1 (2,016 x 107 N.C-1) left/links. (6)
[24]
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10 PHYSICAL SCIENCES P1/FISIESE WETENSKAPPE V1 (EC/NOVEMBER 2022)
QUESTION/VRAAG 7
7.1 7.1.1 OPTION 1/OPSIE 1 OPTION 2/OPSIE 2
1 1 1 R1R 2
= +
R p R1 R 2 R1 + R 2
1 1 1 6x3
= +
Rp 6 3 6+3
Rp = 2 Ω Rp = 2 Ω (3)
7.1.2 V
R=
I
6
2=
I
I=3A (3)
7.1.3 OPTION 1/ OPTION 2/OPSIE 2 OPTION 3/OPSIE 3
OPSIE 1
1 I1 : I2 V
I1 = x3 R=
3 1:2 I
I1 = 1 A I1 = 1 A 6
6=
I
I=1A (3)
7.1.4 OPTION 1/ OPTION 2/OPSIE 2 OPTION 3/OPSIE 3
OPSIE 1
P = I2R V = IR V = IR
P = 12 x 4 V=1x4=4V V=1x4=4V
P=4W P = VI V2
P=
P = 4 x 1 R
P=4W 42
P=
4
P=4W (3)
7.2 6 V. (1)
7.3 W = P∆t
W = 1,5 x 4
W = 6 kW.h
Cost = 6 x 2,05
Cost = R 12,30 (4)
[17]
TOTAL/TOTAAL: 100
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