chapter 3 sains
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Chapter 3 – Matter 1. Diagram 1 shows pictures of three different states of matter.
( a ) ( i ) Match the pictures in Diagram 1 with their arrangement of particles.
Kertas soalan ini mengandungi 11 muka surat dicetak.
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( ii ) Which picture in Diagram 1 has a fixed shape and a fixed volume ? ______________________________________________________________________________ [ 1 mark ]
( b ) Diagram 1.1 shows pictures of the three states of matter
i ) Label the state of matter in the spaces provided on Diagram 1.1 by using the following words.
( ii ) What is the difference between matter P and R ?……………………………………………………………………………………………..………………………………………………………………………………….…………………………………………………………………………………………………………………………..….. [1 mark]
2. Diagram 2 shows pictures of three states of matter.
[Diagram 2]
( a ) On Diagram 2, label the states of matter for each picture using the following words.
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Solid Liquid Gas
Solid Liquid Gas
[3 marks]
[3 marks]
b ) Based on Pictures 1 , 2 and 3, draw diagrams to show the arrangement of the particles in each state of matter. [2 marks]
Picture 1 Picture 2 Picture 3
c ) State one property to differentiate between the states of matter.…………………………………………………………………………………………… [1 mark]
3. Diagram 3.1 shows the arrangement of particles in three different states of matter.
(a) Name the three states of matter P, Q and R in Diagram 3.1P : ……………………………………………………………………………Q : ……………………………………………………………………………R : …………………………………………………………………………… [3 marks]
b) ( i ) Give one example for matter P .……………………………………………………………………………………………………………………………….[1 mark] ( ii ) Give a reason for your answer in (b ) i .……………………………………………………………………………………………………………………………....[1 mark]
( c) What is the difference between matter Q and R ?……………………………………………………………………………………………………………………………………………………………………………………………………...………………………………………………………………………………………………………..…[1 mark]
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4. Diagram4.1 shows three sets of apparatus P, Q and R used in an experiments to study the movement of particles in a solid, liquid and gas. Table 4.1 shows the results of the experiments.
[Diagram 4.1]Experiment Observations Time taken
P The whole gel turns purple in colour 2 daysQ The water turns purple in colour 2 hoursR Both gas jars are filled with smoke. 5 minutes
[Table 4.1]( a ) i. In which experiment does the movement of particles occur the slowest?………………………………………………………………………………………………………………………………………………..…. [1 mark]
ii. Arrange the three sets, P, Q and R in the order of the movement of particles, from the fastest to the slowest.
[1 mark]
b ) In experiment R, the smoke rises to the top of the gas jar after a fewminutes. Why do smoke particles move so quickly in air?……..………………………………………………………………………..……………………………………………………………………………………………………………………………………………………………………………………………………………………...[1 mark]
( c) A student realizes that there is a gas leakage in the laboratory. i. How would he identify that the gas is leaking? ………………………………………………………………………………………………………………………………………………[1 mark] ii. State two actions that the student needs to take before he reports about the leakage to his science teacher? ……………………………………………………………………………………………………………………………………………….[2 mark]
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5. Diagram 5.1 shows the densities of three solids J , K , L and two liquids P and Q
( a ) Arrange the solids and liquids in Diagram 4. 1 in sequence of ascending order based on their densities.
( b ) Solids J , K , L and liquids P and Q are placed in a measuring cylinder . InDiagram 5.2 , label the positions of the solids and the liquids in the cylinder.
c ) Solids N has density of 23.2 g cm. State the position of solid N when it is put into the cylinder in Diagram 5.2
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.…………………………………………………………………………………………………………………………………………………. [1 mark]
( d ) Using the concept of density, state two examples of application the density in our daily life.i. ……………………………………………………………………………………..ii. ………………………………………………………………………………...….. [2 marks]
6. Diagram 6.1 below shows three objects of various densities placed in the liquids of various densities.
( a ) Arrange the objects and liquids in descending order of density.…………………………………………………………………………………………………………………………………………………. [1 mark]
(b ) What possible liquids can U and T be? [2 marks]R: ……………………………………………………………………………………………………………………………………………………………...P: ……………………………………………………………………………………………………………………………………………………………...
c ) What possible objects can P and R be ? [2 marks]P: ……………………………………………………………………………………………………………………………………………………………...R: .……………………………………………………………………………………………………………………………………………………………..
( d ) State two examples of transportation that uses the principle of density of matter.i. …………………………………………………………. ii …………………………………………………….. [2 marks]
7. Table 7.1 shows several substances with different densities.
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Material Density (g/cm3)Cork 0.25Glass 2.6Gold 19Teak wood 0.85Lead 11.4Copper 8.9Polystyrene 0.02Water 1.0
a ) Classify the substances based on whether it’s sinks or float in the water.Sinks in the water Floats on the water
1. 1.2. 2.3. 3.4.
( b ) Diagram 7.2 shows an experiment carried out to determine the density of the cork and the stone.
[Diagram 7.2]
i. Name the method used……………………………………………………………………………………………………………………..…………………..[1 mark]
ii. State whether the shape of the stone is regular or irregular………………………………………………………………………………………………………………………………………….[1 mark]
( c ) Based on diagram 7.2 ,calculate the volume of the…i. stone :
Example:65cm³ - 45 cm³ = 20 cm³
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ii. cork :
[1 mark](d)
Find the density of stone and cork. Use the following formula
i. Stone:
[2 marks]ii. Cork:
[2 marks]
8. Table 8.1 shows the densities of some substances
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Given: Mass of stone = 30 gram
Mass of cork = 1.20 gram
Substance Density (g/cm3)
Solid X 2.6Solid Y 0.95Liquid P 0.7Liquid Q 1.0
Table 8.1
a ) Draw and label the position of the substances P,Q,X and Y in the gas jar in diagram 8.2 after they have arranged themselves according to their densities [4 marks]
b ) Diagram 8.3 shows solids P , Q and R in a gas jar containing liquid Y do not mix.
i. Compare the densities of the substancesQ and X : ………………………………………………………………………………………………………………………P and R : ………………………………………………………………………………………………………………………X and Y : ………………………………………………………………………………………………………………………P and X : ……………………………………………………………………………………………………………………… [2 marks]
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( c ) An object of volume 100 cm³ has a mass of 260g. Determine whether the object will sink or float in a liquid of density 13.6g/cm³.……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………….… [1 mark]
9. Diagram 9 shows an experiment carried out to determine the density of a stone, with a mass of 21 g.
(a) Define the density of an object.………………………………………………………………………………………………………………………………………………... [1 mark]
( d ) Suggest a precaution that must be taken during the experiment………………………………………………………………..……………………………………………………………………………….. [1 mark]
10. Diagram 10 shows an experiment to determine the density of sugar solution.
a ) What is meant by density?…..…………………………………………………………………………………………………………………………………………... [1 mark]
( b ) Based on the information in Diagram 3, calculate the mass of sugar solution used.………………………………………………………………………………………………………………………………………………. [1 mark]
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( c ) i. Calculate the density of sugar solution. [2 marks]
ii. Suggest one way to increase the density of sugar solution.…………………………………………………………………………………………………………………………………….… [1 mark]
( d ) What happens to an eraser if it is dropped into the beaker ofsugar solution above? (Density of eraser = 3.30 g/cm3)……………………………………………………………………………………………………………………………………… [1 mark]
11. Diagram 11 shows five object U,V,W.X and Y
Observe the object in diagram 11.a) Based on your observation. State the form of matter of any four of objects.
U: ………………………………………………………………………………………………………………………………………………………..
V: …………………………………………………………………………………………………………………………………………………………
W: …………………………………………………………………………………………………………………………………………………………
X: …………………………………………………………………………………………………………………………………………………………
Y : …………………………………………………………………………………………………………………………………………………………[4 marks]
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b. Classify the object U, V, W.X and Y into three groups based on form of matter. Name the objects belonging to each group.
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