BECEIntegrated ScienceGhana BECE 2012 INTEGRATED SCIENCE PAST QUESTIONS AND ANSWERS passcogh2 years ago1 year ago01 mins 0% 2 Ghana BECE 2012 INTEGRATED SCIENCE ANSWER BECE 2012 INTEGRATED SCIENCE PAST QUESTIONS 1 / 40 1) The S.I. unit for measuring the work done by a force is A) K B) N C) J D) W 2 / 40 2) The chemical formula of a compound describes the A) ratio in which the elements are combined B) type of bonding in the compound C) number of molecules in the compound D) state of the compound 3 / 40 3) Which of the following life processes is represented by the equation Glucose +oxygen→carbon dioxide +water+ energy A) Respiration B) Photosynthesis C) Excretion D) Digestion 4 / 40 4) Each layer of soil profile is known as A) solum B) regolith C) litter D) horizon 5 / 40 5) When the p-n junction of a transistor is reverse biased A) current flows from the p-type to the n-type B) current flows from the n-type to the p-type C) conduction of current occurs D) no current flows from the p-type to the n-type 6 / 40 6) When a solid-liquid mixture is filtered, the liquid that separates out into the container is called A) filtrate B) residue C) sediment D) solution 7 / 40 7) Which of the following processes involves the solid state of matter? A) Condensation B) Melting C) Boiling D) Evaporation 8 / 40 8) Which of the following farming systems is most effective in maintaining soil fertility? A) Mono culture B) Mixed cropping C) Crop rotation D) Land rotation 9 / 40 9) The disease in humans which is associated within sufficient intake of calcium is A) scurvy B) rickets C) goiter D) kwashiorkor 10 / 40 10) The arrow in the circuit symbol of either n-p-n or p-n-p transistor is always on the A) base lead B) collector lead C) emitter lead D) receiver lead 11 / 40 11) Which of the following insect pests of crops has piercing and sucking mouthparts? A) Termites B) Grasshoppers C) Aphids D) Stem borers 12 / 40 12) A reflex action involves the A) brain and nerves B) spinal cord and muscles C) spinal cord and nerves D) brain and muscles 13 / 40 13) The type of image formed in a plane mirror is always A) diminished B) real C) enlarged D) virtual 14 / 40 14) Which of the following statements about acids are correct? I. They turn red litmus paper blue II. They can be classified as either organic or mineral acids III. They can be neutralized by bases A) II and III only B) I and II only C) I and III only D) I,II and III 15 / 40 15) A transistor is said to operate in an active region when A) both p-n junctions are reversed biased B) base-collector junction is forward biased C) one p-n junction is forward biased and the other is reversed biased D) base-emitter junctions are reversed biased 16 / 40 16) Tuberculosis is spread A) when an infected person coughs openly into the air B) through sharing of contaminated syringes C) through shaking of hands of infected persons D) through eating of contaminated food 17 / 40 17) One function of engine oil in the engine of a tractor is to A) warm the engine B) enhance air intake C) lubricate the engine parts D) ensure proper mixing of fuel 18 / 40 18) Blackpod is a disease of A) coffee B) mango C) guava D) cocoa 19 / 40 19) The efficiency of a machine is always less than 100% because part of the energy input is used to A) perform useful work on the load B) lift the machine up C) overcome friction D) stop the machine after working 20 / 40 20) Which of the following electronic components are used to produce oscillator circuits? I. Transistor II. Inductor III. Capacitor A) I and III only B) I,II andIII C) II and III only D) I and II only 21 / 40 21) Which of the following sources of light is natural? A) Glow worm B) Firecracker C) Fluorescent tube D) Filament bulb 22 / 40 22) Which of the following substances are carried by the blood? I. Hormones II. Urine III. Oxygen IV. Carbon dioxide A) I only B) I and IV only C) III and IV only D) I,III and IV only 23 / 40 23) The practice of starting new organization in response to identified opportunities is termed A) agribusiness B) business enterprise C) management D) entrepreneurship 24 / 40 24) The sub-atomic particle with zero charge in the nucleus of an atom is called A) electron B) neutron C) proton D) ion 25 / 40 25) In the pin-hole camera,when the size of the pin-hole is increased, the image formed is A) blurred B) magnified C) erect D) virtual 26 / 40 26) Non-reactive metals are preferred in making ornaments and jewellery because they A) do not retain their lustre B) are corrosive C) are attractive D) do not react with atmospheric oxygen 27 / 40 27) Producers in an ecosystem are plants that A) feed on other plants B) manufacture their own food C) attract insects D) trap insects 28 / 40 28) The sub-atomic particle with zero charge in the nucleus of an atom is called A) neutron B) proton C) ion D) electron 29 / 40 29) The use of resistant varieties of crop in controlling diseases is described as A) chemical control method B) physical control method C) cultural control method D) biological control method 30 / 40 30) The chemical formula for aluminium oxide is represented as AlxOy. The values of x and y are respectively A) 3 and 2 B) 2 and 3 C) 1 and 3 D) 3 and 1 31 / 40 31) In electrical circuits, the component that protects appliances against very high currents is the A) resistor B) switch C) fuse D) capacitor 32 / 40 32) One benefit of technology to industrialization is A) provision of machinery B) environmental pollution C) reduction in skillful labour D) increase in cost of production of goods 33 / 40 33) Which of the following factors contribute to early parenthood? I. Poverty II. Illiteracy III. Lack of parental care IV. Peer pressure A) II and III only B) I and II only C) I,II,III and IV D) III and IV only 34 / 40 34) Which of the following examples of fertilizers improves soil texture? A) Compost B) NPK C) Urea D) Sulphate of ammonia 35 / 40 35) The reaction between hydrochloric acid and sodium hydroxide produces A) sodium oxide only B) sodium oxide and water C) sodium chloride and water D) sodium chloride only 36 / 40 36) In modern electrical wirings the colour code for the live wireis A) green and yellow B) brown C) blue D) green 37 / 40 37) An example of soil minor nutrient is A) nitrogen B) calcium C) iron D) phosphorus 38 / 40 38) The complete development of a human foetus in the womb normally takes A) 10 months B) 9 months C) 8 months D) 7 months 39 / 40 39) A material that allows a small amount of light energy to pass through it but cannot be seen through is referred to as A) translucent B) opaque C) reflective D) transparent 40 / 40 40) The leads of the transistor responsible for activation is the A) collector B) base C) amplifier D) emitter Your score is Facebook Twitter Restart quiz Post navigation Previous: Ghana WASSCE 2014 BUSINESS MANAGEMENT PAST QUESTIONS AND ANSWERSNext: Ghana BECE 2004 ENGLISH PAST QUESTIONS AND ANSWERS Leave a Reply Cancel replyYour email address will not be published. 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