1) 1. You want to clean tarnished silver. Which one you will use? a) Baking soda b) Salt solution c) Sugar solution d) Vinegar 2) 2. What will you add to your food to make it last longer?  a) Baking soda b) Salt solution c) Tomato d) Vinegar 3) 3. Why is it not advisable to drink soft drink on an empty stomach? a) It could lessen your appetite. b) It could make you feel full faster c) To increases the acidity of your stomach d) It contains stimulant which causes dizziness 4) 4. Which refers to the recorded observations and measurement in an explanation? a) Conclusion b) Data c) Graph d) Variables 5) 5. How is hypothesis tested? a) By gathering enough information about the problem b) By making inferences c) By conducting experiment d) By formulating conclusion 6) 6. A student found a piece of metal. What can the student to do quickly determine if the metal might contain iron? a) Heat the metal b) Weight the metal c) Place the metal in water d) Place the metal near the magnet 7) 7. What human activity has added the most carbon in the atmosphere? a) Burning fossils fuels b) Mining fossil fuel c) Increasing soil erosion d) Cutting the rain forests 8) 8. Which can be classified as homogenous mixture?  I. Buko pie, II. Blood, III. Virgin coconut oil, IV. Mango juice   a) III only b) I and II only c) I, III and IV only d) II, III and IV only 9) 9. Which of the following is a compound? a) Cemented Wall b) Dry Ice c) Gold d) Tincture of iodine 10) 10. Which apparatus will you use to measure the mass of an irregular solid correctly? a) Empty Beaker b) Erlenmeyer Flash c) Graduated cylinder with water d) Vernier Caliper 11) 11. Which of the following is the physical property of non-metals? a) Malleability and ductility b) Low tensile strength c) High density d) High tensile strength 12) 12. What is the direction of magnetic field within a magnet? a) From north to south b) From south to north c) Front to back d) Back to front 13) 13. Which material is the usual component of an anode? a) Aluminum b) Carbon c) Copper d) Nickel 14) 14. Which energy conversation takes place when a toaster is switched on? a) Chemical to sound b) Chemical to thermal c) Electrical to sound d) Electrical to thermal 15) 15. What is the type of energy possessed by a simple pendulum when it is mean position? a) Kinetic energy b) Mechanical energy c) Potential energy d) Sound energy 16) 16. Which of the following is described as a biological community of interacting organisms and their physical environment? Which of the following is described as a biological community of interacting organisms and their physical environment? 16. Which of the following is described as a biological community of interacting organisms and their physical environment?  a) Environmental Science b) Ecology c) Ecosystem d) Environment 17) 17. Which of the following is the sum total of land, water, air, interrelationships among themselves and also with the human beings and other living organisms? a) Environmental Science b) Ecology c) Ecosystem d) Environment 18) 18. Which of the following is about the surrounding external conditions influencing development or growth of people, animal or plants; living or working conditions? a) Environmental Science b) Ecology c) Ecosystem d) Environment 19) 19. What will happen to an object if no external forces act on it? a) It will come to an abrupt halt b) It will continue moving at the same speed c) It will move slower gradually until it stops d) None of these 20) 20. When no forces act on moving objects on air, how can you describe their paths? a) Circles b) Ellipses c) Parabola d) Straight lines 21) 21. Suppose you are riding a motorcycle but it runs out of fuel while driving. The engine stops abruptly but why don't you? a) Because of gravity b) Because of inertia c) Because of continuation principle d) Because of resistance 22) 22. Which of the following best describes an accelerating object? a) Object at rest b) Object in mechanical equilibrium c) Object moving at constant velocity d) Object moving slower 23) 23. Sorted and layered glacial deposit due to action of melted water is called. a) glacial drift b) till c) stratified drift d) moraines 24) 24. The sinking air which produces area of high pressure is called. a) horse latitude b) polar easterlies c) westerlies d) doldrums 25) 25. The change in state of water from gas to liquid is called. a) condensation b) sublimation c) evaporation d) precipitation 26) 26. The moraines which are formed on each side of a glacier is the? a) lateral moraine b) ground moraine c) medial moraine d) terminal moraine 27) 27. The temperature increases with the increase in? a) humidity b) precipitation c) pressure d) all of them 28) 28. Which of the following is not an example of a physical property? a) Freezing point b) Boiling point c) Reactivity d) Density 29) 29. In a metallic bond, the nucleus of one atom is attracted by a nearby atom's. a) Nucleus b) Negative ion c) Energy structure d) Electrons 30) 30. Why do elements in the same families (groups) on the periodic table have the same properties? a) They have the same atomic number and mass number. b) They have the same number of electrons. c) They have the same number of valance electrons. d) They have very similar mass and atomic numbers. 31) 31. The nucleus of an atom consists of protons and neutrons. In an isotope, the numbers of a) protons vary. b) neutrons vary. c) electrons vary. d) quarks vary. 32) 32. If an isotope has 7 protons and a mass number of 15, how many neutrons does it have? a) 8 b) 22 c) 15 d) 7 33) 33. Which of the following boxes would have the greatest acceleration? Which of the following boxes would have the greatest acceleration? 33. Which of the following boxes would have the greatest acceleration?  a) A 10kg box pushed with 5N of force. b) A 10kg box pushed with 10N of force. c) A 20kg box pushed with 5N force. d) A 20kg box pushed with 10N of force. 34) 34. When a pure solid substance was heated, it changed into another solid and gas, each of which was a pure substance. Based on these observations, the original solid a) was a single element. b) was a compound. c) was the mixture of only two substances. d) was a mixture of three or more substances. 35) 35. Which wave requires a medium for transmission? a) Light b) Infrared c) Radio d) Sound 36) 36. A toy car with initial kinetic energy rolls to a stop along a flat track. Because of this friction, some of kinetic energy was transferred to ___________. a) Thermal energy b) Gravitational potential energy c) Elastic energy d) Chemical energy 37) 37. A tool used by scientists to smash atoms is a ____________. a) spectroscope b) stopwatch c) particle accelator d) radio telescope 38) 38. What kind of change occurs when gaseous nitrogen becomes very cold and changes to a liquid? a) Physical b) Chemical c) Both chemical and physical d) Neither chemical not physical 39) 39. Water is a compound H2O. What are its smallest parts in water vapor? a) Molecules of H2O b) Atoms of H and atoms of O c) Drops of liquid water, H2O d) Charged elements of hydrogen and oxygen 40) 40. What would you expect to find inside an electromagnet? a) a permanent magnet b) a coil of wire c) two bar magnets d) a device that uses electricity 41) 41. Which of the following requires the strongest microscope to be seen? a) compound b) molecule c) atom d) element 42) 42. What kind of material should you choose if you want to stop the flow of an eletrical current? a) enhancer b) inhibitor c) conductor d) insulator 43) 43. If an increase or decrease in temperature is large enough, it can cause a) a loss of mass b) an electrostatic discharge c) a transfer of electrons d) a change of state 44) 44. An echo is a result of ___________. a) Reflected Sound Wave b) Diffracted Sound Wave c) Refracted Sound Wave d) Dispersed Sound Wave 45) 45. The frequency of a wave is measured using which of the following units? a) Decibel b) Hertz c) Meters per second d) Wavelength 46) 46. What happens to a wave when it is refracted? a) The wave is bent b) The wave is transmitted c) The wave is reflected d) The wave is radiated 47) 47. The amplitude of a sound waves determine the sounds ____________. The amplitude of a sound waves determine the sounds 47. The amplitude of a sound waves determine the sounds ___________ a) Pitch b) Loudness c) Resonance d) Sound quality 48) 48. What is a force that opposes motion between two surfaces that are in contact? a) Friction b) Motion c) Velocity d) Acceleration 49) 49. Dividing the total distance traveled by the total time is how to calculate? a) Average speed b) Average velocity c) Average acceleration d) Average motion 50) 50. What is the ability to do work called? a) Movement b) Energy c) Power d) Force

PHYSICAL SCIENCE

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