23/04/2020 Junior Class NECO/BECE Mock Exams(Basic Science and Technology) 0Comments by Gate Academy Please, fill out the information below to continue. NAME EMAIL PHONE NUMBER 1. A typical size-D battery has about how many volts?9 V100 V1.5 V0.05 V2. If an element has an atomic number of 9 and a mass number of 19, then, which of the following statements is INCORRECT?Its got 10 electrons and 9 neutrons.There are 10 neutrons in its nucleus.There are 9 electrons orbitting around its nucleus.Its got 9 protons and 9 electrons.3. Diarrhea is caused by bacterial/viral infection of food and waterfalsetrue4. When plants and animals decay, they give offO2CO2N2NH35. A low-resistance connection established by accident or intention between two points in an electric circuit is known as _____Direct circuitShort circuitClosed circuitOpen circuit6. Is a special feature that enables organisms survive in a particular habitat?adaptionharmonyresistancesadness7. Which particles are to be found in the nucleus of an atom?Electrons and neutrons.Protons, neutrons and electrons. ? ? ?Neutrons and protons.Neutrons only.8. [ Junior school science (biology) ]An example of non-living things isAntsBrassDogsCats9. The Earth is made up of three layers including the core and the crust. What is the approximate age of the Earth?4600 million years old2100 million years old1200 million years old1.1 million years old3200 million years old10. Poor diets can cause health problems.Iman and Mike look at information about the amount of fat and fibre in different fruits. All BUT ONE is the reason fibre is important in the dietspeeds up the movement of waste out of the bodyprevents constipationgood source of dietkeeps the digestive system healthyhelps prevent bowel cancer11. The large intestine consists of the following components exceptlongitudinal colonascending colontransverse colondescending colon12. The Blue Streak satellites was lauched by which countryFranceU.S.AJapanAustralia13. Lemon is a source of ................acidaminoascorbiclacticcitricethanoic14. Herbivores are animals that feed onwoodplantsfleshplastic15. Which of the following have thin walled cellsall of the abovenone of the abovearteriesveins16. [ Junior school science (biology) ]Examples of vitamin source is/areEggsPotatoesRicePear17. Hassan does an experiment to find the maximum friction force between a wooden block and different surfaces.Here are his results.Calculate the average (mean) friction force for the glass experiment.10.518.313.09.718. [ Junior school science (physics) ]Kinetic energy is energy of a body due to itslengthdistancemotionposition19. Anus is part of the digestive systemfalsetrue20. A power source than can produce an electric current as a result of a chemical change in it is a/an _________CircuitWireBatteryFilament21. When a substance is analysed using an electron microscope, it is found to contain only one type of atom.This substance isan elementa compounda mixtureneither of the other three22. Air is less dense in which zone of the atmospheretropospheremesospherestratosphereionosphere23. Zainab has five chickens.Here is some information about her chickens. Zainab wants to increase the number of eggs per year by using selective breeding.Which two chickens should she breed together?Jeb and LamAbb and LamFen and LamCoo and Lam24. [ Junior school science (biology) ]Drugs that make people sleep or relieve pain arestimulantsnarcoticssedativeshallucinogens25. There is a between living things and their non-living environmentbalancedisagreementconflictquarrel26. Which one of the following elements is used in party balloons?OxygenNitrogenHeliumNeon27. Symptoms of cholera include a and cdehydrationstoolingsleeping28. Which of these materials is a good conductor? PlasticWoolGold29. The excretory system consists of anustruefalse30. In an endothermic reaction, the energy of the reactants is _________ the energy of the products.equal toless thannot equal togreater than31. Tireni whistles three notes into a microphone connected to an oscilloscope.An oscilloscope shows the shape and size of a sound wave.The diagram below shows the waves for whistle 1 and whistle 2. Use words from the list below to complete this sentence.less than the same as greater than The amplitude of whistle 1 is .................................. the amplitude ofwhistle 2.not enough informationthe same asless thangreater than32. The rate of reaction can easily be measured.Which one of the following does not measure the rate of a reaction?Measuring the temperature of the reaction.Measuring the amount of one of the reactants present as the reaction takes place.Recording the colour of the reacting mixture as the reaction takes place.Measuring the amount of one of the products present as the reaction takes place.33. Male anopheles’ mosquito are examples of vectorscan't sayno sufficient informationtruefalse34. The liquid part of the blood is thewhite blood cellsplasmared blood cellsplatelets35. Carbohydrates on reaction with dilute iodine solution turnblackdissolvespurpleblue36. There are how many seasons in the northern and southern zones431237. Which of the following defends the body against disease-causing organisms red blood cellsplateletswhite blood cellsplasma38. Tetanus vaccine is used to preventanti tetanustetanussemi tetanusa and b39. Chemical sprayed in streams do not kill black flies truefalse40. Poor diets can cause health problems.Iman and Mike look at information about the amount of fat and fibre in different fruits. Name the two fruits with the highest amount of fibre.pineapple and bananastrawberry and pineapplepineapple and kiwi fruitbanana and orange41. [ Junior school science (physics) ]The SI unit of forceAmpereNewtonMetreFarad42. Typhoid fever is caused by nematodevirusfungusbacteria43. includes ways to keep the environment cleanenvironmental pollutionenvironmental sanitationnone of the aboveenvironmental dirtying44. The Earth is made up of three layers including the core and the crust. The core is made up of mainly two metals.One of these metals is nickel.What is the name of the other metal?irongoldaluminiumcopper45. Which of these materials is an insulator? CopperAluminum foilRubber46 out of 45Time is Up!