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∞``°üdGGrade
Science
9Ωƒ∏Y
Test Instructions
Check that this question booklet has your correct details printed on it (eSIS number, name, date of birth, school name, class). If not, write the correct information neatly in the spaces provided.You are allowed 80 minutes for this test.You must not use a calculator.There is a periodic table on the back page.
There are two types of question:
Type 1: Multiple choice (29 questions)Each question has four possible answers. Only one is correct.Use only a pencil to shade in the answer bubble of your choice.If you make a mistake then rub out your answer completely and shade in the bubble of your new answer.
Type 2: Open response (8 questions)Write your answers in the spaces provided within the test booklet.Do not write outside the answer spaces.
QÉÑàN’G äɪ«∏©J äÉeƒ∏©ŸG øª°†àj Gòg á∏Ä°SC’G Öq«àc q¿CG øe ócCÉàdG AÉLôdG
ïjQÉJ ,º°S’G ,eSIS ò«ª∏àdG ∞jô©J ºbQ) ∂H á≤∏©àŸG áë«ë°üdG ÖàcÉa ,∂dòc øμj ⁄ ¿EG .(∞°üdG ,á°SQóŸG º°SG ,IO’ƒdG
.É¡d ¢ü°üîŸG ÆGôØdG ‘ í°VGh πμ°ûH áë«ë°üdG äÉeƒ∏©ŸG.á≤«bO 80 QÉÑàNEÓd ¬H 샪°ùŸG øeõdG
.QÉÑàN’G ∫ÓN áÑ°SÉ◊G ádB’G ΩGóîà°SÉH íª°ùj ’.á∏Ä°SC’G ábQh ô¡X ≈∏Y …QhódG ∫hó÷G øY káî°ùf óŒ
:á∏Ä°SC’G øe ÚYƒf QÉÑàN’G Gòg øª°†àj(’GDƒ°S 29) Oó©àe øe QÉ«àN’G á∏Ä°SCG :∫hC’G ´ƒædG
.áë«ë°U É¡æe §≤a IóMGh áHÉLEG .á∏ªàfi äÉHÉLEG ™HQCG ∫GDƒ°S πμd »àdG äÉHÉLE’G ôFGhO π«∏¶àd §≤a ¢UÉ°U qôdG º∏b ΩGóîà°SG AÉLôdG
.ÉgQÉàîJIôFGO πq∏X qºK πeÉμdÉH áHÉLE’G í°ùà º≤a ,∂àHÉLEG ‘ äCÉ£NCG GPEG
.Iójó÷G ∂àHÉLEG (á∏Ä°SCG 8) áMƒàØŸG äÉHÉLE’G äGP á∏Ä°SC’G :ÊÉãdG ´ƒædG
.QÉÑàNE’G Öq«àc ‘ É¡d á°ü°üîŸG äÉZGôØdG ‘ ∂JÉHÉLEG ÖàcCG.É¡d ¢ü°üîŸG ÆGôØdG êQÉN áHÉLEG áqjCG ¿ qhóJ ’
School
:eSIS No.
Family name
Father's name
Date of birth First name
Class
External Measurement
of Student Achievement
March 2012
»LQÉÿG ¢SÉ«≤dG ÜÓ£dG π«°üëàd
2012 ¢SQÉe
6091-01
*1609199999-2*1609199999-2
-
Ωƒ∏Y – ™°SÉàdG ∞°üdG
2
Aõ÷G
Gòg ‘
Öàμ
J ’
.(NaCl) ΩƒjOƒ°üdG ójQƒ∏c Ö qcôe (Cl) Qƒ∏μdGh (Na) ΩƒjOƒ°üdG π qμ°ûj 1
?CÉ°ûf …òdG §HGÎdG ´ƒf Ée
᫪gÉ°ùJ á£HGQ
á«fƒjEG á£HGQ
á«fó©e á£HGQ
á«fhÎμdEG á£HGQ
áæeBG √É«Ã ⁄É©dG AÉëfCG πc O qhõj √É«ŸG í«°TÎd kÉeɶf AÉ°†ØdG Aɪ∏Y Q qƒW 2
.Üöû∏d áØ«¶f
?AÉ°†ØdG ‘ Ió«Øe É«LƒdƒæμàdG √òg ¿ƒμJ ób GPÉŸ
.á«FÉ°†ØdG äɪ¡ŸG ‘ É¡eGóîà°SG πÑb √É«ŸG í«°TôJ Öéj
.¢VQC’G ≈∏Y »àdG √É«ŸG ç qƒ∏J øe ÈcCG áYöùH AÉ°†ØdG ¤EG òNDƒJ »àdG √É«ŸG ç qƒ∏àJ
AÉ°†ØdG ‘ áØ«¶ædG √É«ŸG OÉéjEG ¿C’ á«FÉ°†ØdG äɪ¡ŸG ‘ √É«ŸG ΩGóîà°SG IOÉYEG Öéj
.áÑ©°U ᪡e
πÑb øe É¡cÓ¡à°SG πÑb äÉÑfòŸG øe IPƒNCÉŸG √É«ŸG í«°TôJ Öéj
.AÉ°†ØdG OGhQ
.º«≤à°ùe QÉ°ùe ≈∏Y áYöùH É¡JOÉ«≤H ¥ÉÑ°S IQÉ«°S QÉÑàNG …ôéj 3
?IQÉ«°ùdG ´QÉ°ùJ øe ójõ«°S Ò«¨J …CG
∑ôëŸG Iƒb ÊóJ
IQÉ«°ùdG á∏àc ÊóJ
QÉ°ùŸG áaÉ°ùe IOÉjR
OƒbƒdG ¿GõN ºéM IOÉjR
6091-02
Grade 9 Science
3
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1 Sodium (Na) and Chlorine (Cl) form a compound Sodium Chloride (NaCl).
What is the type of bond formed?
Covalent
Ionic
Metallic
Electronic
2 Space scientists developed a water filtration system that provides safe, clean drinking
water all over the world.
Why would this technology be useful in space?
Water must be filtered before being used for space missions.
Water taken into space is more easily polluted than water on Earth.
Water on space missions must be reused because getting clean water in space is
difficult.
Water taken from comets needs to be filtered before being consumed by
astronauts.
3 A racing car is tested by accelerating it along a long straight track.
What change would increase the acceleration of the car?
Decrease the force of the engine
Decrease the mass of the car
Increase the length of the track
Increase the size of the fuel tank
6091-03
Ωƒ∏Y – ™°SÉàdG ∞°üdG
4
Aõ÷G
Gòg ‘
Öàμ
J ’
≈∏Y AÉæH ¿ƒμdG ïjQÉJ ájGóH ‘ âq“ »àdG çGóMC’G ¢†©H ‹ÉàdG ∫hó÷G qÚÑj 4
.᫪∏Y ájô¶f
1234
QÉéØfGäÉfƒJhÈdG π tμ°ûJ äÉjQòdG π tμ°ûJöUÉæ©dGhΩƒéædG π tμ°ûJ ájGóH
¿ƒμdG Óμ°û«d πMGôŸG √òg ó©H ÉKóM øjôNBG ÚKóM uº°S .Ωƒ«dG
5
?áKhQƒŸG áØ q°üdG ∫ƒM Gòg Ö n°ùqædG qπé°S øe èpàæà°ùf ¿CG Éææ pμ oÁ GPÉe
.AGƒ°S qóM ≈∏Y çÉfE’Gh QƒcòdG ≈∏Y áKhQƒŸG áØ q°üdG √òg ÒKCÉJ ô n¡¶j
.∫É°ùfCG 4 øe §≤a 1 ≈∏Y áKhQƒŸG áØ q°üdG kIOÉY ô n¡¶J
.¢ùæ÷ÉH ᣠpÑJôeh IóFÉ°S áKhQƒŸG áØ q°üdG √òg ¿ƒμJ ¿CG Ö péj
.á« uëæàe áKhQƒŸG áØ q°üdG ¿ƒμJ ¿CG Ö péj
6091-04
Grade 9 Science
5
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4 The diagram shows some of the events occurring in the early history of the universe,
according to one scientific theory.
1 2 3 4
Explosion Protons formAtoms and elements
formStars begin to form
List two more events that must have happened after these steps to create the universe
today.
5
What can we conclude from this pedigree about the inherited trait?
Male and female offspring are affected equally by this trait.
Usually only 1 out of every 4 offspring display an inherited trait.
This inherited trait must be dominant and sex-linked.
The inherited trait must be recessive.
Key
= male with inherited trait
= female without inherited trait
6091-05
Ωƒ∏Y – ™°SÉàdG ∞°üdG
6
Aõ÷G
Gòg ‘
Öàμ
J ’
6
∞°üdGΩƒjOƒ°üdGQƒ∏ØdGΩƒ«æpŸC’GΩƒ«°ù«æ¨ŸG
1Na+Fl–Al2+Mn3–
2S2+Fl7+Al4–Mg2–
3Na+F–Al3+Mg2+
4S2–Fl7–Al3–Mn3+
?IQƒcòŸG öUÉæ©∏d äÉfƒjC’G øë°Th í«ë°üdG õeôdG qÚÑj ∞°U q…CG
1 ∞°üdG
2 ∞°üdG
3 ∞°üdG
4 ∞°üdG
.¢VQC’G ≈∏Y IÉ«◊G ó«b ≈∏Y AÉ≤Ñ∏d á«◊G äÉæFÉμdG É¡LÉà– »àdG IQGô◊Gh Aƒ°†dG ábÉW ¢ùª°ûdG è pàæJ 7
.¢ùª°ûdG ‘ á`qjhƒf äÓYÉØJ øY ábÉ£dG √òg èoàæJh
?¢ùª°ûdG »g Ée
I qô›
Öcƒc
᪂
ábQÉN ᪂
º°ù÷ ÖqÑ°ùoJ »àqdG á«aÉ q°üdG I qƒ≤dG QGó≤e Ée ,ácôë∏d øJƒ«f ÚfGƒ≤d É k≤a nh 8
?5cm/s/s √Qób ÉkYQÉ°ùJ 2ckg ¬à∏àc
2N
5N
2.5N
10N
6091-06
Grade 9 Science
7
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6
Row Sodium Fluorine Aluminium Magnesium
1 Na+ Fl– Al2+ Mn3–
2 S2+ Fl7+ Al4– Mg2–
3 Na+ F– Al3+ Mg2+
4 S2– Fl7– Al3– Mn3+
Which row shows the correct symbol and charge for ions of the elements listed?
Row 1
Row 2
Row 3
Row 4
7 The Sun produces the light and heat energy that living things need to survive on Earth.
This energy is produced in nuclear reactions inside the Sun.
What is the Sun?
A galaxy
A planet
A star
A supernova
8 According to Newton's Laws of Motion, which net force will accelerate
a 2 kg object at 5 m/s/s?
2N
5N
2.5N
10N
6091-07
Ωƒ∏Y – ™°SÉàdG ∞°üdG
8
Aõ÷G
Gòg ‘
Öàμ
J ’
.•ƒ¨°†ŸG AGƒ¡dG ñhQÉ°U ôeÉY ≥∏WCG 9
.É¡àqÑã«d IóYÉb ≈∏Y áLÉLõdG ™°Vh ºK ∂«à°SÓÑdG øe IÒÑc áLÉLR ‘ AÉŸG ™°Vh
.Ωób áîØæe ΩGóîà°SÉH áLÉLõdG ‘ AGƒ¡dG qï°V ºK
.AGƒ¡dG ‘ áLÉLõdG â≤∏£fG ,IóYÉ≤dG øe áLÉLõdG â∏aCG ÉeóæY
.ácôë∏d ådÉãdG øJƒ«f ¿ƒfÉb ñhQÉ°üdG ¥Ó£fG øgÈj ∞«c qöùa
6091-08
Grade 9 Science
9
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9 Amer launches an air bottle rocket.
He puts water in a large plastic bottle then puts it on a base to hold it.
He then pumps air into the bottle using a foot pump.
When he releases the bottle rocket from the base it launches into the air.
Describe how the rocket launch demonstrates Newton’s third Law of Motion.
Plastic bottle
Water
Base
Foot pump
6091-09
Ωƒ∏Y – ™°SÉàdG ∞°üdG
10
Aõ÷G
Gòg ‘
Öàμ
J ’
.…hƒf ¢†ªM A…õL ‹ÉàdG §£îŸG πãÁ 10
?…hƒædG ¢†ª◊G Ö«côJ í°VhCG á≤jô£H qÚÑj ¿CG §£îŸG Gò¡d øμÁ ∞«c
.êhOõe ¿hõ∏M πμ°T ≈∏Y A…õ÷G q∞d
.Ú£N ¤EG A…õ÷G π°üa
.ô¨°UCG AGõLCG ¤EG A…õ÷G ™«£≤J
.¢ùcÉ©ŸG √ÉŒ’G ‘ A…õ÷G ôjhóJ
.áªéæd á∏ªàμe ÒZ IÉ«M IQhO §£îŸG qÚÑj 11
?§£îŸG πªμj º°ùL q…CG
P
P
P
P
P
P
P
P
P
P
P
P
T
T
T
C
C
A
T
A
A
A
G
G
?
6091-10
Grade 9 Science
11
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10 This diagram represents a molecule of DNA.
How can this diagram more accurately show the structure of DNA?
Twist the molecule into a double helix
Separate the molecule into two strands
Shorten the molecule into smaller pieces
Turn the molecule in the opposite direction
11 The diagram shows an incomplete star life cycle.
Which object completes the diagram?
P
P
P
P
P
P
P
P
P
P
P
P
T
T
T
C
C
A
T
A
A
A
G
G
Stellar NebulaRed Supergiant
Supernova
?Neutron
Star
Black hole
Average star Massive star Planetary nebula Red giant
6091-11
Ωƒ∏Y – ™°SÉàdG ∞°üdG
12
Aõ÷G
Gòg ‘
Öàμ
J ’
.‹ÉàdG QÉÑàN’G óYCÉa π©ØdG OQh π©ØdG á«FÉæK Èàîj ò«ª∏J ¿Éc 12
?QÉÑàN’G Gòg ‘ π©ØdG qOQh π©ØdG áq«FÉæK ƒg Ée
¿ƒdÉÑdGh AGƒ¡dG
Ohó°ûŸG §«ÿGh AGƒ¡dG
Ò°ü©dG á q°UÉeh Ohó°ûŸG §«ÿG
Ohó°ûŸG §«ÿGh ¿ƒdÉÑdG
»nàj sQPh Ωƒ«°ùdÉc I qQP §£îŸG qÚÑj 13
π qμ°ûàd kÉq«FÉ«ª«c á£ÑJôe Qƒ∏c
.Ωƒ«°ù∏μdG ójQƒ∏c
.§HGhQ π qμ°ûàd á≤jô£dG √ò¡H Qƒ∏μdGh Ωƒ«°ùdÉμdG äG qQP πYÉØàJ GPÉŸ qöùa
Ca+2
Cl–
Cl–
6091-12
Grade 9 Science
13
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12 A student was testing action and reaction pairs, and set up the investigation shown.
What is the action/reaction pair in this scenario?
The air and the balloon
The air and the suspended string
The suspended string and the straw
The balloon and the suspended string
13 The diagram shows a calcium atom and
two chlorine atoms bonding chemically
to form calcium chloride.
Explain why calcium and chlorine atoms react this way to form bonds.
suspended stringstraw
balloonair
Ca+2
Cl–
Cl–
6091-13
Ωƒ∏Y – ™°SÉàdG ∞°üdG
14
Aõ÷G
Gòg ‘
Öàμ
J ’
?»KGQh qÒ¨J ¤EG …ODƒj ób á«dÉàdG ä’ɪàM’G øe …CG 14
á«ZÉeO á«∏N ‘ qÒ¨J
á«Hóg á«∏N ‘ qÒ¨J
ájó∏L á«∏N ‘ qÒ¨J
q…ƒ`næ ne ¿Gƒ« nM áq«` p∏` nN ‘ qÒ¨J
?äÉæ«÷Gh …hƒædG ¢†ª◊Gh (äÉ« q̈ Ñ°üdG) äÉeƒ°SƒehôμdG ÚH ábÓ©dG »g Ée 15
.…hƒædG ¢†ª◊G π qμ°ûjh áæ«L ƒg Ωƒ°SƒehôμdG
.äÉæ«L IóY ‘ º q¶æe ƒgh …hƒædG ¢†ª◊G øe Ωƒ°SƒehôμdG ∞qdCÉàj
.…hƒædG ¢†ª◊G øe IóY äÉÄjõL ≈∏Y …ƒàëj ƒgh äÉæ«÷G øe Ωƒ°SƒehôμdG ∞dCÉàj
.IóMGh áæ«L πªëjh …hƒædG ¢†ª◊G A…õL øe Ò¨°U AõL Ωƒ°SƒehôμdG
?»FÉ«ª«c πYÉØJ ¤EG Ò°ûj qÒ¨J …CG 16
πFÉ°ùdG AÉŸG π qμ°ûàd ÜhòJ »àdG è∏ãdG äÉÑ©μe
∫ƒ∏fi ‘ Ö°SÎj í∏e
¥ƒë°ùe π qμ°ûàd áààØŸG áÑ∏°üdG âjÈμdG Qƒî°U
πFÉ°S …RÉZ Ühöûe π qμ°û«d Ühòj …òdG ¿ƒHôμdG ó«°ùcCG ÊÉK RÉZ
.áÑ©d IQÉ«°S ´QÉ°ùJ ôFÉ°ûH äÒZ ,øJƒ«f ÚfGƒb øY QÉÑàNG ‘ 17
?í«ë°U πμ°ûH ´QÉ°ùàdG ÉØ°üj ¿Gò∏dG ¢SÉ«≤dG IóMhh ∞jô©àdG Ée
(m/s2) ᫶ë∏dG áYöùdGh áYöùdG ¬°SÉ°SCG ≈∏Y Ò¨àJ …òdG ∫ó©ŸG
(m/s) ¬°SÉ°SCG ≈∏Y áaÉ°ùŸG Ò¨àJ …òdG ∫ó©ŸG
(m/s) ácô◊G √ÉŒG ¬°SÉ°SCG ≈∏Y Ò¨àj …òdG ∫ó©ŸG
(m2/s) áMGRE’G áMÉ°ùe ¬°SÉ°SCG ≈∏Y Ò¨àJ …òdG ∫ó©ŸG
.ÉjÓÿG ≈∏Y ´É©°TE’G ôKG Oóë«d ÈàîŸG ‘ áHôŒ ⁄ÉY qóYCG 18
Ωƒ≤j ÉeóæY áeÓ°ùdG äGAGôLEG PÉîJGh á°UÉÿG äGõ«¡éàdG ΩGóîà°SG Öéj n⁄
?áHôéàdÉH ⁄É©dG
.∫É©à°TÓd πHÉb …hƒædG ¢†ª◊G
.ôéØàe ´É©°TE’G
.…ƒb ¢†ªM …hƒædG ¢†ª◊G
.¿ÉWöùdG ÖÑ°ùj ¿CG ´É©°TEÓd øμÁ
6091-14
Grade 9 Science
15
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14 Which mutation would result in a change that can be inherited?
A mutation in a brain cell
A mutation in a ciliated cell
A mutation in a skin cell
A mutation in a sperm cell
15 What is the relationship of a chromosome to DNA and genes?
A chromosome is a gene and forms DNA.
A chromosome is made of DNA and is organised into many genes.
A chromosome is made out of genes and has many DNA molecules.
A chromosome is a short part of a DNA molecule and has one gene on it.
16 Which change indicates a chemical reaction?
Ice cubes melting to form liquid water
A salt precipitating out of a solution
Solid sulphur rocks being crushed to form a powder
Carbon dioxide gas dissolving in a liquid soft drink
17 In an investigation about Newton’s Laws, Bashayer changed the acceleration of a toy car.
Which definition and unit of measurement correctly describe acceleration?
The rate at which speed or velocity changes (m/s2)
The rate at which distance changes (m/s)
The rate at which direction of motion changes (m/s)
The rate at which displacement area changes (m2/s)
18 A scientist designs a laboratory experiment to determine the effect of radiation on cells.
Why should special equipment and safety procedures be used when the scientist does
this experiment?
DNA is flammable.
Radiation is explosive.
DNA is a strong acid.
Radiation can cause cancer.
6091-15
Ωƒ∏Y – ™°SÉàdG ∞°üdG
16
Aõ÷G
Gòg ‘
Öàμ
J ’
.ÚØ∏àfl ÚjöûH Újhƒf Ú£‰ √ÉfOCG §£îŸG qÚÑj 19
.ÚjhƒædG Ú£ªædG øjòg ∞∏àîj ∞«c OóM (i
.Ωƒ°Sƒehôc πc øY Úàî°ùf IOÉY …hƒf §‰ πc qÚÑj GPÉŸ ìöTG (ii
1
6
13
21 22 23 24XY
14 15 16 17 18
7 8 9 10 11 12
2 3 4 51
6
13
21 22 23 24XY
14 15 16 17 18
7 8 9 10 11 12
2 3 4 5
6091-16
Grade 9 Science
17
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19 The diagram below shows two different human karyotypes.
i) Identify how these karyotypes differ.
ii) Explain why karyotypes usually show two copies of each chromosome.
1
6
13
21 22 23 24XY
14 15 16 17 18
7 8 9
Karyotype 1 Karyotype 2
10 11 12
2 3 4 5 1
6
13
21 22 23 24XY
14 15 16 17 18
7 8 9 10 11 12
2 3 4 5
6091-17
Ωƒ∏Y – ™°SÉàdG ∞°üdG
18
Aõ÷G
Gòg ‘
Öàμ
J ’
?‹ÉàdG πYÉØà∏d á«FÉ«ª«μdG œGƒædG »g Ée 20
ábÉW + 2H2O + CO2 2O2 + CH4
ábÉW
O2h CH4
ábÉWh H2Oh CO2
H2Oh CO2
Ò°ùJ IÒ¨°U áHôY ‘ ,¿É£∏°ùd ¿Éc .kÉeGôL ƒ∏«c 50 …hÉ°ùJ á∏àc ¿É£∏°ùd 21
.øJƒ«f 2000 â¨∏H á«aÉ°U Iƒb ,(ΰSƒc ôdhQ) ájójóM áμ°S ≈∏Y IÒÑc áYöùH
´QÉ°ùàdG x á∏àμdG = Iƒ≤dG
?á¶ë∏dG ∂∏J ‘ ¿É£∏°S ´QÉ°ùJ ƒg Ée
100,000cm/s2 40.0cm/s2 25.0cm/s2 0.025cm/s2
∂dPh ìhô÷G ∞«Øîàd º°ù÷G ≈∏Y É¡©°Vh øμÁ IOQÉH äGOÉ qªc IQƒ°üdG qÚÑJ 22
.º°ù÷G ≈∏Y §¨°†dÉH
.AÉŸG ™e Ωƒ«fƒeC’G äGÎf §∏àîJ ,IQOÉÑdG IOÉ qªμdG π«©ØJ ºàj ÉeóæY ?IOhÈdÉH Qƒ©°ûdGh IOÉ qªμdG ójÈJ ¤EG …ODƒj »∏j ɇ qÒ¨J q…CG
.ó∏÷G ¤EG ábÉ£dG ≥∏£æJh »FÉjõ«a qÒ¨J ∑Éæg
.ó∏÷G øe ábÉ£dG ¢ünà o“h »FÉjõ«a qÒ¨J ∑Éæg
.ó∏÷G øe ábÉ£dG ¢ünà o“h »Fɪ«c qÒ¨J ∑Éæg
.ó∏÷G ¤EG ábÉ£dG ≥∏£æJh »Fɪ«c qÒ¨J ∑Éæg
6091-18
Grade 9 Science
19
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20 What are the chemical product(s) in this reaction?
CH4 + 2O2 CO2 + 2H2O + energy
Energy
CH4 and O2
CO2, H2O and energy
CO2 and H2O
21 Sultan has a mass of 50 kilograms.
On a roller coaster, Sultan experienced a net force of 2000 Newtons.
Force = mass x acceleration
What is Sultan’s acceleration at this moment?
0.025 m/s2 25.0 m/s2 40.0 m/s2 100,000 m/s2
22 The diagram shows a cold pack that can be applied to the body for relief of minor
injuries when pressed against the skin.
When a cold pack is activated, ammonium nitrate mixes with water.
Which change causes the cold pack to feel cold?
There is a physical change and energy is released to the skin.
There is a physical change and energy is absorbed from the skin.
There is a chemical change and energy is absorbed from the skin.
There is a chemical change and energy is released to the skin.
6091-19
Ωƒ∏Y – ™°SÉàdG ∞°üdG
20
Aõ÷G
Gòg ‘
Öàμ
J ’
øe iôNCG áYƒª› …CG .ºgQƒ¡X ≈∏Y AÉ°†ØdG OGhQ É¡jóJÒd ¿RƒdG áØ«ØN AGƒg äÉfGƒ£°SCG É°SÉf âæH 23
?´GÎN’G Gòg øe kÉ°†jCG íLQC’G ≈∏Y ó«Øà°ùà°S ¢UÉî°TC’G
¿hQÉ«£dG
¿ƒgõæàŸG
¿ƒcÉÑ°ùdG
AÉØWE’G ∫ÉLQ
?π°†aC’G πμ°ûdÉH (Crick) ∂jôch (Watson) ¿ƒ°ùJGh Ö°ùM …hƒædG ¢†ª◊G êPƒ‰ πqãÁ …òdG §£îŸG ƒg Ée 24
P
P
P
P
P
P
P
P
P
P
P
P
T
T
T
C
C
A
T
A
A
A
G
G
ACCACGCUUAA
GACACCU
G
C TG U G U
CU
G A G
G
U
C
A
AA
G
U
CAG
ACC
C G A G AG G
G
GA
CUCAUUUUAGGCG
P
G
G
C
C
C
A T
G
C G
A
A
T
T
A
A
A
A
T
T
T
G G
A A
C
T
A
T
A
CC
GG
C
C C
G
G
G
G
TT
6091-20
Grade 9 Science
21
do
not w
rite in this space
23 NASA built lightweight air cylinders that could easily be worn on an astronaut’s back.
Which other group of people would most likely benefit from this invention?
Pilots
Hikers
Plumbers
Fire-fighters
24 Which diagram best represents the Watson and Crick DNA model?
P
P
P
P
P
P
P
P
P
P
P
P
T
T
T
C
C
A
T
A
A
A
G
G
G
G
C
C
C
A T
G
C G
A
A
T
T
A
A
A
A
T
T
T
G G
A A
C
T
A
T
ACCACGCUUAA
GACACCU
G
C TG U G U
CU
G A G
G
U
C
A
AA
G
U
CAG
ACC
C G A G AG G
G
GA
CUCAUUUUAGGCG
P
A
CC
GG
C
C C
G
G
G
G
TT
6091-21
Ωƒ∏Y – ™°SÉàdG ∞°üdG
22
Aõ÷G
Gòg ‘
Öàμ
J ’
.¢VQCÓd áÑ°ùædÉH âHÉãdG QGóŸG ‘ ä’É°üJÓd »YÉ棰UG ôªb OƒLƒd IóMGh áæ°ùM ôcPG (i 25
áÑ°ùædÉH âHÉãdG QGóŸG ‘ ä’É°üJÓd »YÉ棰UG ôªb OƒLƒd IóMGh áÄ«°S ôcPG (ii
.¢VQCÓd
?áfhRƒe ádOÉ©e »g »∏j ɇ á«FÉ«ª«c ádOÉ©e q…CG 26
2MgO O2 + Mg
MgO O2 + 2Mg
MgO 2O2 + Mg
2MgO O2 + 2Mg
?áq«fó©e Iôμd ÈcC’G ¿RƒdG ¿ƒμj øjCG 27
¢VQC’Gôª≤dG¢ùª°ûdGïj qôŸG
(m/s2) áq«HPÉ÷G9.81.62743.7
¢VQC’G
ôª≤dG
¢ùª°ûdG
ïjôŸG
.π qμ`°ûà`J äGôéŸG äCGóH ¿ƒμdG ¿ tƒμ`J øe Úæ°ùdG ÚjÓe ó©H 28
?IôéŸG »g Ée
.QÉѨdGh RɨdG øe áæNÉ°S ájôFGO áHÉë°S
.äÉÑqfòŸGh ÖcGƒμdG ¬H §«– º‚
.Aɪ°ùdG ‘ kÉ£` n‰ oπ qμ`°ûoJ ΩƒéædG øe IÒ¨°U áYƒª›
.ΩƒéædG ÚjÓe º°†J IÒÑc áYƒª›
6091-22
Grade 9 Science
23
do
not w
rite in this space
25 i) State one advantage of having a telecommunications satellite in geostationary orbit.
ii) State one disadvantage of having a telecommunications satellite in geostationary
orbit.
26 Which chemical equation is balanced?
Mg + O2 2MgO
2Mg + O2 MgO
Mg + 2O2 MgO
2Mg + O2 2MgO
27 Where would the weight of a metal ball be greatest?
Earth Moon Sun Mars
Gravity (m/s2) 9.8 1.6 274 3.7
Earth
Moon
Sun
Mars
28 Many millions of years after the universe began, galaxies started to form.
What is a galaxy?
A hot swirling cloud of gas and dust.
A star surrounded by planets and comets.
A small group of stars that forms a pattern in the sky.
A very large group of many millions of stars.
6091-23
Ωƒ∏Y – ™°SÉàdG ∞°üdG
24
Aõ÷G
Gòg ‘
Öàμ
J ’
.ÈàîŸG ‘ ÉjÓÿG ≈∏Y ´É©°TE’G nôKCG l⁄ÉY ÈàNEG 29
.èFÉàædG ‹ÉàdG ∫hó÷G qÚÑj
´É©°TE’G ᫪cº°ù≤æJ »àdG ÉjÓÿG áÑ°ùf
á°†Øîæe80
ᣰSƒàe60
á©ØJôe40
.ɪμ ofi GQÉÑàNG â°ù«d áHôéàdG √òg
.áHôéàdG √òg Ú°ù– ⁄ pÉ©∏d øμÁ ∞«c qöùa
á∏eÉc IQhóH Ωƒ≤«d ¢VQCÓd áÑ°ùædÉH âHÉãdG QGóŸG ‘ »YÉ棰UG ôªb É¡LÉàëj »àdG äÉYÉ°ùdG OóY ƒg Ée 30
?¢VQC’G ∫ƒM
6
12
24
48
6091-24
Grade 9 Science
25
do
not w
rite in this space
29 A scientist tests the effect of radiation on cells in a lab.
The table shows the results.
Radiation dosagePercent of cells that
divide
Low 80
Medium 60
High 40
This experiment is not a 'fair test'.
Describe how the scientist could improve this experiment.
30 How many hours does a satellite in a geostationary orbit take to complete one revolution
of the Earth?
6
12
24
48
6091-25
Ωƒ∏Y – ™°SÉàdG ∞°üdG
26
Aõ÷G
Gòg ‘
Öàμ
J ’
.∫hóL ‘ º°ùL ácôM π«é°ùJ ” 31
(á«fÉK) âbƒdG(Îe) áaÉ°ùŸG
010
516
1020
1522
?º°ù÷G Gòg ácô◊ çóëj …òdG Ée
.áàYöS ¢übÉæàJ
.áàYöS ójõJ
.¬gÉŒG qÒ¨j
.∑ôëàj ’
32
?ádOÉ©àŸG ¿ƒμ«∏«°ùdG I qQP ‘ DƒaÉμàdG äÉfhÎμdEG OóY ºc
6 5 4 3
1
H1.008
3
Li6.939
11
Na22.99
19
K39.102
37
Rb85.47
55
Cs132.91
87
Fr215
4
Be9.0122
12
Mg24.312
20
Ca40.08
38
Sr87.62
56
Ba137.34
88
Ra226.03
21
Sc44.956
39
Y88.905
57*
La138.91
89**
Ac227.03
22
Ti47.940
Zr91.22
72
Hf178.49
104
Rt[261]
23
V50.942
41
Nb92.906
73
Ta180.95
105
Db[262]
24
Cr51.996
42
Mo95.94
74
W183.85
106
Sg[266]
25
Mn54.938
43
Tc[97]75
Re186.2107
Bh[264]
26
Fe55.847
44
Ru101.07
76
Os190.2108
Hs[269]
27
Co58.933
45
Rh102.91
77
Ir192.2109
Mt[268]
28
Ni58.71
46
Pd106.4
78
Pt195.09
110
[271]
29
Cu63.546
47
Ag107.87
79
Au196.97
111
[272]
30
Zn65.37
48
Cd112.4
80
Hg200.59
5
13
31
49
81
68
100
6
14
32
50
82
114
69
101
7
15
33
51
83
70
102
8
16
34
52
84
116
71
103
9
17
35
53
85
2
10
18
36
54
86
B
Al
Ga
In
Tl
Er
Fm
C
Si
Ge
Sn
Pb
Tm
Md
N
P
As
Sb
Bi
Yb
No
O
S
Se
Te
Po
Lu
Lr
F
Cl
Br
I
At
He
Ne
Ar
Kr
Xe
Rn
10.811
26.982
69.72
114.82
204.37
167.26
257.1
164.93
252.08
162.5
252.08
158.92
249.08
157.25
244.06
151.96
241.06
150.35
239.05
145
237.05
144.24
238.03
140.91
231
12.011
28.086
72.59
118.69
207.19
[289]
168.93
258.1
14.007
30.974
74.922
121.75
208.98
173.04
259.1
15.999
32.064
78.96
127.6
210
[289]
174.97
262.11
18.98
35.453
79.904
126.
210
4.003
20.183
39.948
83.8
131.3
222112
[277]
58
90
59
91
60
92
61
93
62
94
63
95
64
96
65
97
66
98
67
99
Ce
Th
Pr
Pa
Nd
U
Pm
Np
Sm
Pu
Eu
Am
Gd
Cm
Tb
Bk
Dy
Cf
Ho
Es
140.12
232.04
*Lathanides
**Actinides
1A
2A
3B 4B 5B 6B 7B 1B 2B
3A 4A 5A 6A 7A
8APERIODIC TABLE OF THE ELEMENTS
8B
6091-26
Grade 9 Science
27
do
not w
rite in this space
31 The movement of an object is recorded in a table.
Time (s) Distance (m)
0 10
5 16
10 20
15 22
What is happening to the motion of this object?
The speed is decreasing.
The speed is increasing.
It is changing direction.
It is at rest.
32
How many valence electrons does a neutral atom of Silicon (Si) have?
3 4 5 6
1
H1.008
3
Li6.939
11
Na22.99
19
K39.102
37
Rb85.47
55
Cs132.91
87
Fr215
4
Be9.0122
12
Mg24.312
20
Ca40.08
38
Sr87.62
56
Ba137.34
88
Ra226.03
21
Sc44.956
39
Y88.905
57*
La138.91
89**
Ac227.03
22
Ti47.940
Zr91.22
72
Hf178.49
104
Rt[261]
23
V50.942
41
Nb92.906
73
Ta180.95
105
Db[262]
24
Cr51.996
42
Mo95.94
74
W183.85
106
Sg[266]
25
Mn54.938
43
Tc[97]75
Re186.2107
Bh[264]
26
Fe55.847
44
Ru101.07
76
Os190.2108
Hs[269]
27
Co58.933
45
Rh102.91
77
Ir192.2109
Mt[268]
28
Ni58.71
46
Pd106.4
78
Pt195.09
110
[271]
29
Cu63.546
47
Ag107.87
79
Au196.97
111
[272]
30
Zn65.37
48
Cd112.4
80
Hg200.59
5
13
31
49
81
68
100
6
14
32
50
82
114
69
101
7
15
33
51
83
70
102
8
16
34
52
84
116
71
103
9
17
35
53
85
2
10
18
36
54
86
B
Al
Ga
In
Tl
Er
Fm
C
Si
Ge
Sn
Pb
Tm
Md
N
P
As
Sb
Bi
Yb
No
O
S
Se
Te
Po
Lu
Lr
F
Cl
Br
I
At
He
Ne
Ar
Kr
Xe
Rn
10.811
26.982
69.72
114.82
204.37
167.26
257.1
164.93
252.08
162.5
252.08
158.92
249.08
157.25
244.06
151.96
241.06
150.35
239.05
145
237.05
144.24
238.03
140.91
231
12.011
28.086
72.59
118.69
207.19
[289]
168.93
258.1
14.007
30.974
74.922
121.75
208.98
173.04
259.1
15.999
32.064
78.96
127.6
210
[289]
174.97
262.11
18.98
35.453
79.904
126.
210
4.003
20.183
39.948
83.8
131.3
222112
[277]
58
90
59
91
60
92
61
93
62
94
63
95
64
96
65
97
66
98
67
99
Ce
Th
Pr
Pa
Nd
U
Pm
Np
Sm
Pu
Eu
Am
Gd
Cm
Tb
Bk
Dy
Cf
Ho
Es
140.12
232.04
*Lathanides
**Actinides
1A
2A
3B 4B 5B 6B 7B 1B 2B
3A 4A 5A 6A 7A
8APERIODIC TABLE OF THE ELEMENTS
8B
6091-27
Ωƒ∏Y – ™°SÉàdG ∞°üdG
28
Aõ÷G
Gòg ‘
Öàμ
J ’
.»FÉ«ª«c πYÉØJ á«∏ªY ‘ ɪ¡KhóM ™bƒàJ Úà¶MÓe π qé°S 33
?¿ƒμdG ôªY øe áæ°S QÉ«∏e ∫hCG ‘ IOƒLƒe ÒZ äGôéŸGh ΩƒéædG âfÉc GPÉŸ 34
.ΩƒéædG π«μ°ûàd öUÉæ©dG øe á«aÉc ᫪c ∑Éæg øμj ⁄
.ΩƒéædG π tμ°ûJ ¿hO ∫ƒ– »àdG IOÉ°†ŸG OGƒŸG øe ÒãμdG ∑Éæg ¿Éc
.äGôéŸGh ΩƒéædG …ƒàë«d kG qóL kGÒ¨°U ¿ƒμdG ¿Éc
.ΩƒéædG π qμ°ûJh ∞KÉμàJ ¿CG I qOÉŸG ™£à°ùJ ⁄h kG qóL kG qQÉM ¿ƒμdG ¿Éc
.ôªMCG ÉeEGh »qæH ÉeEG á¡cÉØdG ÜÉHP ¿ƒ« oY ¿ƒd ¿ƒμj ¿CG øμ oÁ 35
?IóFÉ°S áØ°U AGôª◊G ¿ƒ«©dG ¿ƒμJh áq«ëæàe áØ°U áq«æÑdG ¿ƒ«©dG ¿ƒμJ ¿CG »æ©J GPÉe
.π«∏b áq«æÑdG ¿ƒ«©dG …P ÜÉHòdG ôKÉμJ ∫ɪàMG
.Úàq«æH Úæ«Y äGP áHÉHP ÉéàæJ ¿CG øjhGôªM Úæ«Y äGP ÚàHÉHòd øμÁ
.Úàq«æÑdG Úæ«©dG …P ÜÉHòdG øe ÌcCG øjhGôªM Úæ«Y hP ÜÉHP óLƒj
.øjhGôªM Úæ«©H ÉHÉHP §≤a èæàj ¿CG øjhGôª◊G Úæ«©dG …P ÜÉHò∏d øμÁ
6091-28
Grade 9 Science
29
do
not w
rite in this space
33 Outline two observations you would expect to see in a chemical reaction.
34 Why were stars and galaxies not present in the first billion years of the universe?
There were not enough elements to form stars.
There was too much antimatter for stars to form.
The universe was too small to contain stars and galaxies.
The universe was too hot for matter to condense into stars.
35 Fruit flies can have brown or red eyes.
What does it mean for brown eyes to be recessive and red eyes to be dominant?
Brown-eyed flies are less likely to reproduce.
Two red-eyed flies can produce brown-eyed flies.
There are more flies with red eyes than brown eyes.
Red-eyed flies only produce red-eyed flies.
6091-29
Ωƒ∏Y – ™°SÉàdG ∞°üdG
30
Aõ÷G
Gòg ‘
Öàμ
J ’
.áHôY ™jöùàd áHƒ∏£ŸG Iƒ≤dG ò«eÓJ ¢SÉb 36
.øJƒ«f 5 ≠∏ÑJ áàHÉK Iƒ≤H áHô©dG Öë°S ”
π«ãªàdG ≈∏Y èFÉàædG π«é°ùJ ”h m¿GƒK 10 IÎa ≈∏Y ᫶ë∏dG áHô©dG áYöS ¢SÉ«b ”
.‹ÉàdG ÊÉ«ÑdG
´QÉ°ùàdG x á∏àμdG = Iƒ≤dG
. m¿GƒK 10 IÎa ∫ÓN áHô©dG ´QÉ°ùJ Ö°ùMG (i
.áHô©dG á∏àc Ö°ùMG (ii
?NO3- äÉfƒjCGh Mg2+ äÉfƒjCG ᣰSGƒH π qμ°ûàj …òdG Ö qcôª∏d á«FÉ«ª«μdG ᨫ°üdG »g Ée 37
MgNO3
Mg(NO3)2
Mg2NO3
Mg2(NO3)2
02
35
30
25
20
15
10
5
4 6 8 10
6091-30
Grade 9 Science
31
do
not w
rite in this space
36 Students measured the force required to accelerate a cart.
The cart was pulled with a constant force of 5 Newtons.
The velocity of the cart was measured over a 10-second period and the results were
graphed as shown.
Force = mass x acceleration
i) Calculate the acceleration of the cart over the 10-second period.
ii) Calculate the mass of the cart.
37 What is the chemical formula of the compound formed by Mg2+ ions and NO3- ions?
MgNO3
Mg(NO3)2
Mg2NO3
Mg2(NO3)2
02
35
30
25
20
15
10
5
4 6
Time (seconds)
Constant Acceleration
Velo
city
(met
res/
seco
nd)
8 10
6091-31
6091-32
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001