ujian sains tingkatan 1
Post on 18-Nov-2014
14546 Views
Preview:
DESCRIPTION
Transcript
tSUBJECTIVE SECTION [60 marks]Questionl [6marksl
1. Complete the mind-mapping based on the answers given in the box below.
o Constellationso Depletion of ozone layero Household appliances. Using internet for the trade of pomographyo Development in health serviceso Mirage
(c) Science also has limitations and abuses.Examples that lead the abuses are;
12ml
Question 2 [8 marks]
Study the picture given.Complete the word puzzle for the career related to science based on the pictureComplete with suitable word in column how science is used.Study the example given.
Figure Career related to sciencep field of
science IIow science is used?
Example
Pa,ed.La,treLcl .a-r l rBiology/paediatrics
Paediatrics is used toconcern with childrenand their illnesses
l .
**
**
E-t-rn_-og;
[ 1m]Entomology
Entomology is used tostudy everything fact of
r t I
_(e_re__(o_(otg___
[ 1m]Meteorology
Meteorology is used tostudy the earth'safrnosphere and it'schanges especially forforecasting
[ 1m]Astronomy
Astronomy is used to beexpert in everything factof
ml
M -.c _ a,_L_ a,_
E__L_ee_
ml
Physics /Mechanics
Mechanics is used topractice the applicationof scientific knowledgein the design,construction and controlof
!
4
Question 3 [9 marks]
We must obey all safety rules in the laboratory. Accidents in the laboratory can be disastrous.
However, they can be avoided if precautions are taken at all times.
Put a (0 for the do's and (X) for the don'ts.
Take a lot of chemicals. ( )
Wait until the end of the lesson to tell your teacher that you have bunrt yourself. ( )
Wash your hands thoroughly after all practical work. ( )
[3m]
3b). Study the pictures below.
The following diagrams illustrate some situations in a science laboratory.
Write danser/mistake in each situation and the precaution that should be taken.
Dangerlmistake:
[ 1m]
Precaution:
. . . . [ 1m]
Danger/ mistake:
[ 1m]
Precaution:.
"" [ 1m]
Dangerlmistake:
. [ 1m]
i i .
Question4 [5marks]
Study the following figure. Scientific diagram should be simple as shown in the example
below.
rlish
so I t ttion being a'aporale d
lflfe gailte
IHeat
tripad stand
Draw a neat labelled scientific, containing only sectional diagram of apparatus based on
3-D figure I below. Draw your diagram in the box provided.
[3m]
ii)
6
Choose one apparatus that are labelled above and write the function for the apparatus in
table below.
Name of apparatus Function
[2m]
Question 5 t6 marksl
Match the symbols below with the nature of the hazardous substance by putting the correctnumber in each box.
Symbol
I
t lO
2x 3. - - -ttlE)tt|0f , t,^
a.t-! t 'q: !-
4
.Lf
5
Nafure of hazardous substance
'.& Flammable substancesExamples:- petrol, alcohol, potassium,
sodium, phosphorous
t lI I
,g Explosive substancesExamples:- mixture of hydrogen
air
t l
Corrosive substancesExamples:- acid, alkali
t t
!S
's Poisonous or toxic substancesExamples:- mercury, cyanide,
chloroform
t--lI I
Stimulative substancesExamples:- chloroform, alcohol,
bromine vapour
t--lt l
Radioactive substancesExamples:- radioactive carbon,
uranium, plutonium
t--l
I Etr
[6m]
b)
Question 6 6 marksl
a) The table below shows the readings obtained by an astronaut when he used Balance M
and Balance N at two different locations.
Type ofReading of balance at location
Earth Moon
Balance M 600 100
Balance N 600 600
Name the type of balance.
(D Balance M:.... [ lm]
[ lm](ii) Balance N:
The following figure 2 shows the arms of a four-arm beam balance being used to measure
the mass (in grams) of an object.
3
Figure 2
Read the following notes given and write the scale readings
Arm reading for the heaviest mass ( the top arm)
Arm reading for the heavier mass ( 2"d from top)
Arm reading for the smaller mass ( 2"d from bottom)
Arm reading for the smallest mass ( the bottom arm)
TOTAL READING : first r second + third * fourth arms
:. . . . . . . . . . . . .grams [2m]
c)
Mass Weight
[ 1m] l rnl
-tT
in the space provided.
Write one different between mass and weight in the table below.
QuestionT Il0marksl
la). The diagrams below show various instruments and apparatus used to make
measurements.
Write down the readings in the spaces provided.
Figure Reading
Examples
I
r0 30?* 40
Reading ................cm
[ 1m]
(i)
Reading:
oa
[ 1m]
(ii)
0rgs*5f i?
Reading:
cJn
l lml
7(iii)
(i) Initial volume of
water .. . . cm
t c l l r , l l r r t '
(ii) Final volume of
water: . . . . . . . . . . cm
(iii) Volume of stone:
..cm
l3 ml
[6m]
tb) Figure 3 shows two student, student P and student Q, measuring some basic physical
quantities.
Stlflerrt F Strttletrt Q
Figure 3
Name the physical quantity and the S.I unit that measured by these students.
Student P Student Q
physical quantity
S.I unit
[4m]
Studerrt Q
Question
a)
on8 [ l0marks]
The figure 4 shows an external calliper being used to find the extemal diameter of thetest tube. Readings were taken at four different positions.
tst tulrc
Reading l:2.2 cmReading 2:2.1 crnReading 3 :2.1 crrrReading 4:2.0 cm
(i) Name another apparatus that is required for the measurements to be taken.
. . . ( 1m)
(ii) Find the average external diameter of the test tube.
( lm)
(iii) why is it necessary to take readings at four different positions?
(iv) If the intemal diameter is 2.0 cm, what is the thickness of the glass used for the test tube?
Figure 4
The following figure 5 shows the traced objects of the eraser and the piece of cloth.
lcm
/ \
/ \\
\ tI
\ t
lcm lcm
Eraser is .. . . . Piece of cloth
lcm
r\ I
(
Figure 5
(i) Based on the figure 5, fill in the blank above by using the following words.
Irregular shape Regular shape
(ii) State the physical quantity shown by the figure 5.
(iii) Estimate the areas of taced eraser and traced piece of cloth.
a) the eraser
b) the piece of cloth : . . .. . ..
l2ml
[1 m]
12ml
OBJECTM SECTION [ 40 marks]
Which of the following isthe correct definition of technology?
A The study of natural phenomenaB The discovery of a vaccine to cure diseasesC The investigation of how the climate changes
globallyD The application of scientific knowledge for
practical purposes
Which of the following apparatus isused for measurins?
Which of the following shows thevalue of the prefix correctly?
Which of the following apparatuscan be used to measure 25 ml of aliquid accurately?
burettepipetteEureka canmeasuring cylinder
Figure IWhat is the use of the apparatus as shown infigure 1?
containing chemicalsmesuring the volume of a liquidmeasuring a fixed volume of a liquidtransfering a small amount of a liquid
Hafrzihas a body mass of 40 000 g.What standard form is wriffen for thisquantity?
4.0 x 103 g
4.0 x 10-3 g
4.0 x 104 g-4
4.0 x lO 'g
ABcD
ALj
D\./
\ /
l lABcD
kilo: 10-3
deci: 10-1
centi: 102
milli: 10-2
The inforrnation shows the memories of four computers.M- 3.2 gigabytesN - 2.4 terabytesO - 4.2megabytesP - 12.8 kilobytes
Which computer has the biggest memories?AMBNCO
A
B
C
D
Why pouring unused chemicals back into
their containers is discouraeed?
A saves costsB dilutes the chemicalsC may contaminate the chemicalsD increases the concentration of the
chemicals
Figure 2
Which of the following symbol should belabelled on X?
rFtts#ffi
A
ffiffi
c
13
Why must one check the label on thecontainer of a chemical before using it?
A To know the colour of the chemicalB To know the quantity of the the
chemicalC To know whether the chemical can be
reusedD To make sure that the correct
chemical is used
I tO I Figure 2 shows a bottle containingconcenffated hydrochloric acid solution.
I t t I Figure 3 shows thehazard, symbol of substance X.
B D
Figure 3
What is the best way of handling substance X?
A Keep in a lead containerB Keep under the paraffin oilC Keep away from heat sourcesD Avoid contact with skin or eves
Which option below represent correctly thedifference between the mass and weight of anobject?
A
B
c
D
Mass WeightIt is lower on the
moon than on Earth
It is the same on the
moon and Earth
Its SI unit is g Its SI unit is N
Measured using a
lever balance
Measured using a
spring balance
It is the quantity of
matter in the object
It is the quantity of
atoms in the object
A student is heating a substance as shownin figure 4.
alcohol
Figure 4
What is he doing wrong?
A He should use a water bathB He should not use a wire gavzeC The beaker should be held bv a
retortD He should heat the substance in a
test tube
Which one of the following is not a basicphysical quantity in science?
AreaMassTemperatureElectric current
If the volume of 20 marbles is 50 cm3, whatis the volume of one marble?
A 1000 cm3
B 70 cric 2.5 cm3D 0.4 cm3
Figure 5 shows the luminous flame ofa Bunsen burner.
Which of the following statements is trueabout the flame shown?
A It has an inner zone wherecombustion is complete
B It will change into a blue flame ifthe air hole is opened.
C It does not produce any soot.
D It is a very hot flame.
What are the tools for measuringlength of a curved line?
I apat of callipers and a ruler.
II a vernier and a ruler.
III a thread and a ruler.
IV an opisometer and a ruler.
A III and IV only
B I, II and III only
C II, III and IV only
D I,II, III and IV only
til
/ r ' t l
\dI ttr'
Figure
ABCD
15
The results of an experiment to determine
length of a curve is shown in Table 1.
Experiment Length (mm)
I 273
2 276
3 274
4 277
Table
What is the average length of the curve?
A 273 mm, C 275 mm
B 274nm D 276mm
What is the field of specialisation for
physiologist?
A person who studies planets
A person who studies theweather
A person who studies rock andmineral
A person who studies theinteraction between livingthings and the environment
46.3 cm3
What is the volume of the piece of metal asshown in Figure 6?
the
A
B
c
D
EI\D OF QUESTION PAPER
@""A &r"n
4.63 cm3
s.s2 ci
46.3 cm3
ss.2 c#
A
B
c
D
3" t4-#2 '*"*{"*Z""r> 4r/
-%A.*'zZ* tlet/at b 4*rz
top related