exam mid term science

8/9/2019 Exam Mid Term Science

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SCIENCE FORM 4, 2006

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SEKOLAH MENENGAH KEBANGSAAN JULAU (YEB6201)

SECOND MID-TERM EXAM

SCIENCE FORM 4

(1 hour 15 minutes 50 marks)

Name: Form: ..

OBJECTIVE QUESTION

Instructions: Each question is followed by four alternative answers A, B, C, and D.

Choose one correct answer for each question.

1. Which is the best definition of

science?A. Treatment of illnessB. Discovery of new thingsC. Knowledge about the

environment

D. Exploration of outer space

2. What is scientific investigation?

A. A method only used by scientists.B. A systematic approach used by

scientists to find the answer to a

problem or phenomenon.

C. The correct attitude one shouldhave in doing experiments.

D. A process of making ahypothesis

3. Arrange the following steps in a

scientific investigation in the correct

sequence.

PCarry out an experiment

QCollect and interpret dataRIdentify the problem

SForm a conclusion

TForm a hypothesis

A. T, R, P, Q, SB. R, T, P, Q, SC. P, S, R, T, QD. S, R, T, Q, P

4. Why is scientific investigation

important?

A. It allows scientists to use theirskills

B. It encourage scientists to formhypothesis

C. It increases our knowledge of theenvironment

D. It follows a scientific method


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5. Coordination is important to

A. Sense stimuliB. Perform responsesC. Correlate body activitiesD. Coordinate and correlate body

responses

6. What are the two body systems that

control and regulate coordination?

A. The reproductive system andexcretory system

B. The endocrine system and thenervous system

C. The endocrine system andrespiratory system

D. The nervous system and thecirculatory system

7. Which statement is not true about

synapse?

A. Space between the ends of twoneurones

B. Initiates impulses to be sent tothe brain

C. Ensures impulses travels in onedirection

D. Present between a sensoryneurone and a relay neurone

8. A student withdraws his hand

immediately when he touches a hot

kettle accidentally. Which of the

following shows the path taken by an

impulse during the response?

A. Receptor sensory neuronerelay neurone motor

neurone effector

B. Receptor relay neuronemotor neurone

effectorsensory neurone

C. Effector sensory neuronerelay neurone motor

neurone receptor

D. Effector motor neuronesensory neurone relay

neurone receptor

9. During cell division, chromosomes

are attached to the spindles by means of

the..

A. CentromeresB. ChromatidsC. Recessive genesD. Nuclear membrane

10. Which of the following shows the

correct number of chromosomes in the

skin of a normal male?

A. 44 + XXB. 44 + XYC. 22 + XD. 22 + Y


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11. What is variation?

A. Natural differences amongindividuals of the same species

B. Natural differences amongindividuals from different species

C. Artificial features created on aperson

D. Differences in artificial featuresamong human beings

12. Which of the following is not a

contribution of genetic research?

A. Cloning of livestock such assheep

B. Genetic engineering in bacteriato produce insulin

C. Invention and manufacture ofplastics in large quantities

D. Human Genome Project to matchthe genes with the disorders they

cause

13. Matter can be made of any one of the

following except

A. AtomsB. MoleculesC. IonD. Alpha

14. Which statement is true about the

particles in a gas?

A. The gas particles attract oneanother with great force

B. The gas particles always exist inthe form of atoms.

C. The gas particles have highkinetic energy

D. The gas particles are at equaldistances from one another

15.

26

Fe

56

The symbol above shows that iron has..

A. 26 neutrons and 30 electronsB. 26 electrons and 30 protonsC. 26 protons and 30 neutronsD. 26 protons and 30 electrons

16. Based on the table, which element

are isotopes?

Element Nucleon

number

Proton

number

Neutron

number

E 12 6 6

G 13 6 7

J 14 7 7

L 16 8 8

A. E and GB. G and JC. J and L


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D. E and L

17. According to Dalton, the smallest

indivisible particle of any matter is

called

A. MoleculeB. CrystalC. AtomD. Ion

18. A normal ion hydrogen has

A. Only one neutronB. Only one protonC. One proton and one electronD. One proton, one electron and one

neutron

19. What is a physical change?

A. A change which does not use upenergy

B. A change which does notproduce a new substance

C. A change which causes a changein state

D. A change which causes a changein the shape of the substance

20. Which of the following is a chemical

change?

A. Boiling water to get steamB. Heating ammonium chloride

C. Cooling hot saturated coppersulphate solution to get crystals

D. Adding zinc into copper chloridesolution

21. Which of the following changes is a

physical change?

A. Heating wax in a test tubeB. Heating copper carbonate

strongly

C. Heating a mixture of iron filingsand sulphur

D. Adding a piece of sodium intowater

22. Which of the following changes is a

chemical change?

A. Drying clothesB. Making iceC. Making teaD. Baking bread

23. A chemical change is least likely to

be caused by

A. Sound energyB. Heat energyC. Light energyD. Electrical energy


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24. Electrolysis is the process of

A. Using electrical energy to join upatoms to form compounds.

B. Using electrical energy todecompose a compound

C. Using chemical energy togenerate electrical energy

D. Using kinetic energy to generateelectrical energy

25. Which type of battery is commonly

used in mobile handphones?

A. Alkaline batterB. Solar batteryC. Nickel-cadmium batteryD. Silver oxide-mercury battery

SECTION B [20 marks]

Instruction:Answerallthe questions.

1. a) Draw 3 diagrams to represent the arrangement of particles in a solid, gas and liquid. [3 marks]

SOLID GAS LIQUID

b) Compare the two states of matter (between solid and gas) according to the: [4 marks]

i) Motion of the particles

ii) Forces acting between particles

SOLID GAS

i) i)


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ii) ii)

c) The figure below shows a part of the Periodic Table.

X

I VIII

Y

a) Name the parts labelled X and Y. [2 marks]

i) X:

ii) Y:

b) What is the element spefications in the bold boxes? [1 marks]

2. a) Tabulate the difference between a physical change and a chemical change. [6 marks]

Physical change Chemical change

II III IV V VI VII

Transition elements


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b) Explain what happens at the anode and the cathode during electrolysis. [2 marks]

...

c) State two weaknesses in the simple cell. [2 marks]

.

...................................... Good luck

Prepared by : Checked by : Approved by :

. ..

(Cik Wan Noorazah) (Pn. Hellen Ak Minggu) (Pn. Nisi Ak Naung)

Guru Biologi Tingkatan 4 Guru Kanan Sains & Matematik PK1, S.M.K Julau

exam mid term science

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