1. POINTS TO PONDER
I. MULTIPLE CHOICES: Encircle the letter of the correct answer.
1. Which of the following is a theory on the origin of the universe?
A. Gaseous Universe B. Big Bang C. special Relativity D. Cloud Night
2. What type of star has the highest surface temperature?
A. Blue B. White C. Yellow D. Red
3. What is the smallest planet in the solar system?
a. Mercury B. Venus C. Pluto D. Mars
4. What is the largest planet in the solar system?
A. Neptune B. Uranus C. Saturn D. Jupiter
5. Who was credited with the discovery of Pluto?
A. Clyde Tombaugh B. Percival Lowell C. sir William Herschel D. Galileo Galilee
6. Which of the following planets has only one moon?
A. Mercury B. Venus C. Earth D. Mars
7. Ganymede is the largest moon in the solar system. Which planet does it belong to?
A. Jupiter B. Satrurn C. Earth D. Mars
8. According to currently existing data, which of the following plantes has rings?
A. Mercury B. Venus C. Saturn D. Pluto
9. Which of the following does not correctly describe the Kniper Belt?
A. Located beyond the orbit of Pluto. B. It contains various icy bodies.
C. Pluto and charon are part of the Kniper Belt D. Comets are said to have originated in this region.
10. Which of the following does not correctly describe a Black Hole?
A. The result of a collapsed star. B. Light cannot scape from it, that’s why it’s black.
C. It has a very high gravity, so objects are sucked into it. D. An empty region in space, no star that’s why it’s black.
11. About seventy eight percent (78%) of the earth’s air is made up of what type of gas?
A. Oxygen B. Nitrogen C. Argon D. Carbon dioxide
12. The food-making process where green plants take in carbon dioxide and give off oxygen.
A. Thermopolis B. solar Cycle C. Photosynthesis D. Hygrometer
13. What instrument is used to measure air pressure?
A. Thermometer B. anemometer C. Barometer D. Hygrometer
14. The layer of the atmosphere where all weather activities occur .
A. Thermosphere B. Stratosphere C. Mesosphere D. Troposphere
15. The ionosphere is located between which two layers of the atmosphere?
A. Troposphere & Stratosphere B. Stratosphere & Mesosphere C. Mesosphere & Thermosphere D. Thermosphere & Exosphere
16. This is the gap separating the thermosphere and exosphere.
A. Stratopause B. Menopause C. Thermopause D. Exopause
17. This type of air pollution is caused by fog combining with smoke coming from factories and vehicles.
A. Fog smoke B. Smog C. Fog monoxide D. Smoke monoxide
18. What does CFC mean?
A. Chlorofluorocarbons B. chloroform carbon C. carcinofluoro chlorine D. chloroform carcinogen
19. The international organization responsible for the effective monitoring in the atmosphere and exchange of weather – related formation.
A. World Weather Watch (WWW) B. World Meteorological Organization (WMO)
C. Weather and Climate Worldwide (WCW) D. World Climatological Organization (WCO)
20. What does the “G” in the government agency PAGASA mean?
A. Geographical B. Geological C. Geophysical D. Global
21. The Philippines belongs to what ocean basin?
A. Pacific B. Atlantic C. Indian D. Arctic
22. How much percentage of the Earth covered with water?
A. less than 40% B. more than 70% C. 50% D. 100%
23. How much percentage of the Earth’s water is fresh
A. around 3% B. around 25% C. around 50% D. almost 100%
24. What is the largest sea ion the world?
A. Mediterranean B. Philippine C. South China D. Caspian
25. Caspian is the world’s largest .
A. Sea B. River C. Lake D. Ocean
26. The largest fresh water lake in the Philippines is .
A. Laguna de Bay B. Atlantic C. Lake Lanao D. Arctic
27. What rocks allow water to pass through?
A. Impermeable Rocks B. Penetrable Rocks C. Permeable Rocks D. Allowable Rocks
28. This is another name for the zone of saturation when it is between two impermeable layers.
A. Aqueduct B. Aquezone C. Aquifer D. Aqua layer

2. 29. Water enters the atmosphere or air in what form?
A. ice B. clouds C. snow D. water vapor
30. Which of the following is an effect of water pollution?
A. more swimming activities B. balanced mineralization C. Eutrophication D. Desalination
31. Which of the following is a Teutonic plate?
A. Philippine Plate B. Mediterranean Plate C. Chinese Plate D. English Plate
32. Mayon Volcano is what type of volcano?
A. Shield Volcano B. Cinder Volcano C. Dome Volcano D. Composite Volcano
33. Mt. Pinatubo is what type of volcano?
A. Shield Volcano B. Cinder Volcano C. Dome Volcano D. Composite Volcano
34. Which of the following is a sensor?
A. Seismograph B. Seismometer C. Seismogram D. Richter scale
35. Extrusive rock belongs to which group?
A. igneous B. sedimentary C. metamorphic D. organic
36. Which of the following is a sedimentary rock?
A. Pumice B. Granite C. Gneiss D. Shale
37. Which of the following is a metamorphic rock?
A. Pumice B. Granite C. Gneiss D. Shale
38. Which of the following does not cause soil erosion?
A. Decaying plants & animals B. Quarrying C. Building Construction D. Weathering
39. Which of the following should be avoided during earth quake?
A. First aid Kit B. wide open areas C. under a strong furniture D. under the bridge
40. According to Moh’s Scale of Hardness, the hardest mineral is .
A. Talc B. Corundum C. Diamond D. Quartz
41. Which if the following does not refer to energy?
A. equals the object mass divided by its velocity B. The ability to do work C. Kinetic and potential are its general forms. D. is always conserved
42. What is the relationship between kinetic energy and velocity?
A. directly proportional B. Inversely Proportional C. Power D. inverse power
43. If the height increases, the gravitational potential energy .
A. increases proportionally B. decreases proportionally C. increases by exponent D. decreases by exponent
44. When a ball is dropped at a certain height, its gravitational potential energy .
A. increases B. decreases C. remain the same D. increases and decreases
45. When a ball is dropped at a certain height, its kinetic energy .
A. increases B. decreases C. remain the same D. increases and decreases
46. When a ball is dropped at a certain height, its total energy .
A. increases B. decreases C. remain the same D. increases and decreases
47. Which of the following can be said about lighting a match?
A. chemical energy to electrical energy B. chemical energy to light energy and heat energy
C. light energy to heat energy D. chemical energy to potential energy
48. Which of the following methods of heat transfer can occur in an empty space or even a vacuum?
A. Conduction B. Convection C. Radiation D. Intermission
49. Which of the following best describes nuclear fission?
A. splitting a heavy element to lightweight element B. combining two lightweight elements to form a new element
C. Splitting an element to separate individual protons, neutrons and electrons
D. Combining protons, neutrons and electrons to form a new element.
50. The Philippines is one of the world’s leader in harnessing
A. solar energy B. wind energy C. Geothermal Energy D. Nuclear Energy
51. What is needed to produce work?
A. force coincides w/ direction B. force C. Direction D. all of the above
52. In work, what is the relationship between work and distance?
A. directly proportional B. power relationship C. inversely proportional D. inverse power proportional
53. In work, what is the relationship between force and distance?
A. directly proportional B. power relationship C. inversely proportional D. inverse power proportional
54. A force is applied north of an object. The object is currently moving to the east. The work done by the force of an object is .
A. force/ distance B. zero C. greater than zero D. cannot be determined
55. A force applied northeast of an object. The object is currently moving to the east. The work done by the force of an object
A. force or distance B. is zero C. greater than zero d. cannot be determined
56. Which of the following is an example of work from a physicist’s perspective?
A. You attempt to open a jar of pickles but did not succeed. B. You conduct mental relation exercise.
C. Your find falls asleep during a movie. D. You throw a dart but miss the target.
57. Which of the following is a simple machine?
A. washing machine B. nail C. wheel and axle D. sewing machine

3. 58. Which of the following is a second class lever?
A. Golf Club B. Seesaw C. shovel D. rowing oar
59. Which of the following is a measurement of rate?
A. joule B. power C. energy D. Newton
60. Which of the following is equivalent to one horse power?
A. 100 kwh B. 1200 ft – lbs/ hour C. 0.75 joules D. none of the above
61. Which of the following equations is correct in describing the relationship between speed s, distance d and time t?
A. s = d/t B. s = d ● t C. s = d + t D. s = d – t
62. What is the relationship between speed and time?
A. directly proportional B. power relationship C. inversely proportional D. inverse power relationship
63. What is acceleration?
A. change in velocity per time B. change in distance per time
C. in Newton’s Second Law, increases when the mass increases D. in Newton’s First Law, is determined by inertia
64. Which of the following is a non – contact force?
A. Elastic gravitational force B. Weak resistance force C. Magnetic Frictional Force D. Strong Nuclear Force
65. Which of the following is Not a contact force?
A. Friction B. Gravitational Force C. Tension D. Elastic Force
66. The mass o f an object is .
A. The force of gravity on that object located at a particular point.
B. The amount of matter contained in that object, regardless of its location, whether on the earth or on the moon.
C. Dependent on whether the object is on the earth or the moon.
D. Divided by the earth’s acceleration due to gravity to get the weight.
67. Inertia is .
A. the basis for Newton’s First Law of Motion B. defined as the tendency for an object to remain in uniform motion
C. a term meaning resistant to change D. all of the above
68. Scientists use Mathematics to .
A. help nonscientists understand the physical world B. prove how complex science is
C. give a qualitative description of nature D. provide a language to describe occurrences in nature
69. Which of the following items is not a fundamental quantity?
A. temperature B. time C. work D. length
70. The value of 7.5 x 10
-7
is equivalent to .
A. 0. 000 000 75 B. 0. 000 000 075 C. 0. 000 007 5 D. 75 000 000
71. The value of 4. 204 x 10
4
is equivalent to .
A. 0. 000 420 4 B. 42, 040 C. 420 400 D. 0. 000 042 04
72. Which of the following equations show a direct relationship between a and b?
A. a = b x h B. a = h/b C. a = 1/(b x h) D. a = b + h
73. Which of the following equations show a power relationship between variables j and p?
A. j = p² x o² B. j = o³/p² C. j = o/p³ D. j = o²/p²
74. Which of the following equations is an example of an inverse power relationship between variables j and o?
A. j = p² x o² B. j = o³/p² C. j = p³/o³ D. j = 0² - p²
75. Which of the following units is SI?
A. mile B. gram C. Fahrenheit D. pound
76. Which of the following is true about science?
A. Science tries to provide answers concerning the environment. B. Science needs evidence before accepting theory as fact.
C. Both statements are correct. D. Both statements are incorrect.
77. Which of the following is a scientific fact?
A. Lightning is a form of electricity. B. If you sweep at night, you are sweeping away your fortune.
C. You will not sleep soundly if your body is aligned from east to west. D. An eclipse is an event where the sun eats the moon.
78. Which of the following is a branch of science?
A. astrology B. extrasensory perception C. astronomy D. parapsychology
79. Which of the following is a branch of physics?
A. mechanics B. extrasensory perception C. physical education D. biology
80. Which of the following is a combined science?
A. genomy b. chemiology C. metaphysics D. planetology