Topnotcher Compendium Users 2024 2nd Mock Board Examination PDF

Topnotcher Compendium Users 2nd Mock Board Examination 1. These are living things that use sunlight, chlorophyll, 10. What causes high and low tides? water and carbon dioxide to produce food. a. Earth’s rotation on its axis a. Autotrophs...

Topnotcher Compendium Users 2nd Mock Board Examination 1. These are living things that use sunlight, chlorophyll, 10. What causes high and low tides? water and carbon dioxide to produce food. a. Earth’s rotation on its axis a. Autotrophs b. Moon’s gravitational pull b. Consumers c. Sun’s solar energy c. Heterotrophs d. Earth’s gravitational pull d. Food chain 11. How does an occlusion form? 2. It is describe as the lifeline of the body. IT is the a. Cold air moving up from the ground body’s “pickup” and delivery system.” b. Cold front pushing warm air up of the ground a. Blood c. Unbalance electrical reaction in the air b. nervous system d. Cold and warm air mixing in the atmosphere c. circulatory system 12. What is a heat haze? d. heart a. A reflection caused by pollutants in the air 3. They are the transmitters of message from the b. A distorted image resulting from the bending of sun’s different parts of the body to the brain and vice versa. light rays by changes in air temperature a. spinal cord c. A movement of warm air over a vast expanse of land b. neurons or nerve cells d. Caused by extremely high temperature common in c. brain dessert areas d. arteries 13. How do hormones work? 4. Which part of the brain controls the following a. By releasing adrenaline activities: breathing, blood pressure, heart rate, and b. By controlling cell chemistry alertness? c. By regulating water loss a. brainstem d. By controlling blood pressure b. hypothalamus 14. Name the male and female sex hormones c. cerebrum a. Sperm cell & Ovum d. spinal cord b. Testosterone 5. Refers to a sequence of organism in a community c. Chromosomes that constitutes a feeding chain. d. Red & white blood cells a. photosynthesis 15. The unit of measurement of energy in a given b. ecosystem amount of food c. consumers a. Pound d. food chain b. Kilo 6. Is a group of interacting plants, animals and human in c. Olfactory system a particular area? d. calorie a. ecological community 16. The growth of roots towards water is an example b. environment of? c. living organism a. Chemotropism d. food chain b. Geotropism 7. Excessive presence of carbon dioxide in the air, c. Hydrotropism trapping heat near the earth’s surface causing a rise in d. Phototropism temperature in the environment. 17. DNA means a. El Nino a. Data nurturing analysis b. Greenhouse Effect b. Deoxytribonucleic acid c. Deforestation c. Deoxyribonucleic acid d. Weather disturbance d. Deotrixyl nucleic acid 8. The Earth’s shield against sun’s harmful radiation. 18. What are the three products of oxygen when it has a. Atmosphere been burned? b. Air a. Water, carbon dioxide and air c. Ozone layer b. Energy, water and carbon dioxide d. Forest c. Energy, carbon and oxide 9. The use of product containing ______ is discouraged d. Energy, air and water because they contribute to the depletion of ______. 19. In flowering plants, fertilization happens in the? a. Chlorofluorocarbon-solar radiation a. Pollen tube b. Gas-ozone layer b. Stamen c. Ozone layer air c. Ovules d. Chlorofluorocarbon-ozone layer d. Pollen grain 20. The development of egg without fertilization 29. A Mole is the amount of substance or a mass of a a. Mitosis substance that contains? b. Parthenogenesis a. 6.20 x 1023 particles c. Spermatogenesis b. 60.2 x 1023 particles d. Mitochondria c. 6.02 x 1023 particles 21. Which of the following is a source of energy needed d. 60.2x 1023 particles for photosynthesis? 30. It is the measure of the amount of matter in an a. Water object b. Soil a. Weight c. Light b. Mass d. Fertilizer c. Volume 22. Chemistry is primarily concerned with the d. Quantity composition and changes of? 31. This law states that energy cannot be created nor a. Nature destroyed but only changes from one form to another b. Matter a. Energy law c. Man b. Kinetic Theory of Matter d. Earth c. Law of Conservation Energy 23. A scientific theory is d. None of the above a. A hypothesis not yet subjected to experimental test 32. This law states that matter is made up of a large b. explanation that can be repeatedly tested and number of molecules which are in continuous motion corroborated a. Boyles’s Law c. An imagination b. Kinetic Theory d. A guess c. Law of Conservation Energy 24. Which of the following is NOT a compound? d. None of the above a. acetic acid 33. The lowest possible temperature that a substance b. alcohol can reach c. magnesium a. Freezing point d. Zinc Oxide b. Absolute Zero 25. A measure of how badly the atom wants another c. Steam point electron. d. Threshold a. Electronegativity 34. It is the amount of heat required to raise the b. Atomic radius temperature of kg. of a substance by degree C c. Number of shells a. Calorie d. Valence electrons b. Watt 26. The willingness of an atom to receive electron is c. Specific heat capacity measured by its? d. Joule a. Electronegativity 35. The relationship of give-and-take of living b. Ionization potential organism in the biosphere is a balance of nature c. Atomic size called ________. d. Electron affinity a. universal relationship 27. A molecule is said to be polar or dipole if? b. symbiotic relationship a. Its positive and negative charges are at different c. spontaneous relationship places d. abiogenetic relationship b. Such a charge separation exists in a whole molecule 36. Process of removing excess odor in water. c. Its’ polar bond have unsymmetrical charge a. sedimentation distribution b. chlorination d. There is no charge separation c. distillation 28. Which of the following statements is true? d. aeration a. Molecular weight does not influence boiling and 37. The earth rotates on its axis from west to east. This melting point of a substance causes the sun to ______? b. Boiling and melting point tend to increase with a. appear with a fiery orange color molecular weight b. cause the appearance of solar eclipse c. Boiling and melting point tend to decrease with c. rise in the east and sets in the west molecular weight d. emit solar radiation d. None of the above 38. One of these planets has the greatest gravitational 48. What is the principal function of gravity in the pull. Which one is it? universe? a. Mars a. Provision for energy b. Earth b. Keeps the stars and other heavenly bodies in orbit c. Mercury c. Causes movement in space d. Jupiter d. Part of universal design 39. Which of the following is NOT a source of energy? 49. What does the word “monsoon” mean? a. water a. Moon will soon come b. nuclear b. Rains c. geothermal heat c. Seasons d. inertia at rest d. Wet weather 40. Which instrument will one use to convert 50. It occurs when the earth is between the sun and the mechanical energy to electrical energy? moon, with the earth’s shadow cast over the moon. a. rotor a. Total eclipse b. generator b. Lunar eclipse c. motor c. Eclipse d. circuit d. Partial Eclipse 41. Sun’s energy is generated by? 51. Male and female reproductive part of a flower a. nuclear fission – nuclear plants a. Pollen grains and ovules b. sun enacting with gravity b. Stamen and pistil c. nuclear fusion reaction c. Pollen grains and pistil d. reaction with magnetic field d. Stamen and ovules 42. Application of energy is called ________? 52. In the human body, the cell that most nearly a. work resembles a one-celled animals b. inertia a. Red Blood cell c. kinetics b. White Blood cell d. simulation c. Nerve cell 43. The falling of any form of water from the air to the d. Antibodies earth’s surface 53. The main energy source of a plant-eating animals a. Condensation a. Glucose b. Precipitation b. Starch c. Water vapor c. Cellulose d. Rainwater d. Glycogen 44. The part of the atmosphere that filters the 54. These are cellular secretions which help regulate the ultraviolet rays of the sun breakdown and build-up of various substance in the a. stratosphere body. b. Troposphere a. Enzymes c. Ozone layer b. Amino Acids d. Ionosphere c. Plasma 45. The point in the earth’s orbit nearest to the sun d. Hormones a. Solstice 55. It is the energy source of the cell which it uses for b. Eclipse growing, reproducing and other activities c. Aphelion a. Adenosine Triphosphate d. Perihelion b. Amino Acids 46. A property of minerals which gives off rays of light c. Chloroplast when exposed to ultraviolet light. d. Sunlight a. Luminescence 56. It is a segment of DNA molecule which controls the b. Phosphorescence appearance of a given trait c. Radiation a. Chromosomes d. Fluorescence b. Genes 47. How long does it take for the earth to complete one c. Gametes rotation? d. Zygotes a. 365 days 57. Group of similar cells performing similar functions b. 30 days together c. 24 hours a. Organs d. 12 hours b. System c. Nucleus d. Tissue 58. The diffusion of water through a semi permeable 67. The temperature at which the vapor pressure of the membrane liquid is equal to the pressure of the surrounding’s a. osmosis atmosphere b. permeability a. Melting point c. Transfusion b. Critical point d. Capillary c. Boiling Point 59. It shows the complex food relationship of organism d. None of the above in a given area and the cyclic flow of food through 68. The warming of the earth’s surface due to an organisms increase in atmospheric carbon dioxide a. Food chain a. Greenhouse effect b. Food web b. Ozone c. Food pyramid c. Atmospheric pressure d. Biological cycle d. El Nino phenomena 60. Which of the following does NOT occur to both 69. Describe the force of gravity on an object respiration and fermentation? a. mass a. energy is released b. weight b. sugar is broken down c. capacity c. carbon dioxide is produced d. pressure d. alcohol is formed 70. When gaseous molecules are compressed, they tend 61. Energy removal is best illustrated in to? a. boiling of liquid substances a. increase in volume b. changing water to ice b. decrease in volume c. changing water to stem c. repel each other d. none of the above d. attract and liquefy 62. Refers to the maximum amount of solute expressed 71. It is the union of two light nucleus to form a heavier in grams that can be dissolved in 100 grams of water at nucleus, resulting in a mass defect and release of energy a specific temperature a. Radiation a. Solubility b. Nuclear Fission b. Stability c. Nuclear Fusion c. Molarity d. Radioactivity d. Molality 72. Which of the following statements is a 63. Compounds with the same molecular formula but characteristic of an electronic spectrum? with different structural formulas a. They all travel at the different speed in outer space a. Cellulose b. The exhibit only diffraction phenomena b. Isomers c. They do not follow the laws of refraction and c. Polymers reflection d. Monomers d. They follow the laws of refraction and reflection 64. The most penetrating type of radiation given off by 73. The term “RADAR” is derived from the phrase? radioactive elements a. “Radiation Detection and Ranging “ a. Alpha particle b. “Radiation Diffusion and Ranging” b. Beta particle c. “Radio Diffraction and Resolution” c. Gamma particle d. “Radiation Diffraction and Resolution” d. None of the above 74. A material whose ability to conduct electricity lies 65. The basic unit for expressing the masses of between those of conductors and insulators? individual atoms a. integrated circuits a. Atomic number b. silicon chips b. Atomic mass unit c. semi-conductors c. Nucleus d. insulators d. Atomic weight 75. “LASER” is derived from the phrase? 66. A substance that speeds up a chemical reaction a. Light Amplification by Stimulated Emission of without itself undergoing a chemical change Radiation a. catalyst b. Light Application by Simulated Emission of Radiation b. Enhancer c. Light Amplification by Simulated Ejection of Radiation c. Electrolytes d. Love Amplification by Simulated Ejection and d. Ionizer Rejection 76. What is the color of a transparent substance? 86. Two pots are filled with boiling water. The pots are a. The color of the light it absorbs exactly the same size, but one pot is white and the b. The color of light it reflects other is black. Which pot cools faster? c. The color of light it transmit a. the white pot d. The color of light it refracts b. the black pot 77. What is a rotating electromagnetic called? c. neither, they cool at the same time a. Motor d. it depends on the heat b. Rotor 87. If a material becomes positively charged after being c. Phasor rubbed, what does it indicate? d. Sensor a. it gains protons 78. What is an electrochemical cell in which the reacting b. it gains electrons materials can be renewed by the use of reverse c. it loses protons current? d. it loses electrons a. Storage cell 88. Which of the following devices conducts electricity b. Primary cells in one direction only? c. Fuel cell a. diode d. Chemical cell b. resistor 79. Temperature is a measure of c. capacitor a. the total energy in something d. transistor b. the total kinetic energy in something 89. What law states that the force of electrostatic c. the average energy in a substance interaction between two point charges is directly d. the average molecular kinetic energy in a substance proportional to the product of their charges and is 80. In thermodynamics, which states that the two inversely proportional to the square of their separation systems which are in thermal equilibrium with a third distance? system are in thermal equilibrium with each other? a. Ohm’s Law a. Zeroth law b. Coulomb’s Law b. first law c. Faraday’s Law c. second law d. Ampere’s Law d. third law 90. The electron volt is a unit of 81. The natural direction of heat flow is from a high – a. charge temperature reservoir to a low-temperature reservoir. b. energy This fact is incorporated in the c. voltage a. first law of thermodynamics d. potential b. second law of thermodynamics 91. As more lamps are put into a parallel circuit, the c. law of conservation of energy overall current in the circuit d. Zeroth law of thermodynamics a. increases 82. The warmth that you feel when you place your b. decreases finger at the side of the flame of a burning candle is c. remains the same primarily caused by d. changes a. conduction of heat 92. Electric power is defined as b. convection of heat a. current time voltage c. radiation of heat b. current divided by voltage d. both convection and radiation c. voltage divided by current 83. When heat is added to boiling water, its d. resistance times voltage temperature 93. Lenz’s law is a consequence of the law of a. increases conservation of b. decreases a. charge c. remains the same b. energy d. increases then decreases c. momentum 84. An adiabatic process in a system is one in which d. none of them a. no heat enters or leaves the system 94. Which property of light produces bright and dark b. the pressure of the system remains constant bands on a screen after light from a source passes c. the system does no work nor work is done on it through two very narrow slits that are near each other? d. the temperature of the system remains constant a. dispersion 85. Heat transfer by convection occurs b. interference a. only in gases c. refraction b. only in liquids d. polarization c. only in gases and liquids d. in solids, liquids, and gases 95. A person standing waist deep in a swimming pool appears to have short legs because of 98. Why some sound is louder than others? a. reflection a. greater amplitude b. refraction b. longer wavelength c. diffraction c. higher frequency d. interference d. lower pitch 96. What states that light always takes a path that 99. What kind of mirror is used in automobile and trucks requires the least time as it moves from one point to to give the driver a wider area and smaller image of the another? traffic behind him? a. Snell’s law a. convex mirror b. Fermat’s principle b. concave mirror c. Huygen’s principle c. plane mirror d. none of them d. any of these 97. An echo is produced by 100. As light wave passes from a medium whose index a. reflection of sound of refraction is 1.5 into a medium whose index of b. superposition of beats refraction is 1.2, its c. refraction of sound a. frequency increases d. diffraction of sound b. frequency decreases c. wavelength increases d. wavelength decreases