Set 1: GENERAL SCIENCE (75 - minutes)

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1) The polarization behavior of light is BEST explained by considering light to be ________.

a) Particles b) Unpolarized c) Longitude waves d) Transverse waves

2) Sunsets often appear to have a more reddish-orange color than the moon. Which of the following phenomenon is responsible for this effect?

a) Dispersion b) Rayleigh Scattering c) Polarization d) Refraction

3) The protein shell of a virus is called ________.

a) Nucleolus b) Capsid c) Nucleus d) Nucleic acid

4) Which of the following is an example of a heat engine?

a) A fan blowing cool air. b) A refrigerator. c) A car engine. d) An electric heater.

5) Which of the following is the BEST description of white light?

a) It is a pure color that cannot be broken up. b) It is a mixture of red, blue, and yellow. c) It is a mixture of every color. d) It is a mixture of seven colors.

6) According to the law of reflection, from what angle is light coming after it is reflected from a mirror?

a) The same angle as the incident ray as measured from the surface of the mirror. b) The same angle as the incident ray as measured from the normal to the mirror. c) Some light comes directly from the object and some passes through the mirror. d) Cannot be determined.

7) Regular intake of fresh fruits and vegetables is recommended in the diet since they are a good source of antioxidants. How do antioxidants help a person maintain health and promote longevity?

a) They activate the enzymes necessary for vitamin synthesis in the body and help prevent vitamin deficiency. b) They prevent excessive oxidation of carbohydrates, fats, and proteins in the body and help avoid unn c) They neutralize the free radicals produced in the body during metabolism. d) They activate certain genes in the cells of the body and help delay aging.

8) Which of the following is NOT a type of forest?

a) Tropical dry b) Aqueous arboreal c) Sparse tress and parkland d) Temperate needleleaf

9) Which of the following is the building block of protein?

a) Amino acid b) Nucleotide c) Fatty acid d) Monosaccharide

10) April and May are identical twins. One day, April embarked on a high-speed space travel into a distant star. When he gets back home, who is older between the two?

a) None of them because they are still of the same age b) April c) May d) Cannot be determined

11) Which of the following is included in the term hydrosphere?

a) All the liquid water on the Earth, minus the ice. b) All waters on the surface of the continents. c) All the water on the planet. d) All the fresh water on the planet.

12) Which of the following methods can all diabetics control their condition and avoid heart disease and blindness?
I. Regulating their intake of glucose :
II.Increasing the levels of insulin in the body by taking insulin injections :
III.Maintaining a reasonable exercise regimen to keep weight down.

a) I b) II c) I and II d) I and III

13) The fastest-running terrestrial animal is:

a) cheetah b) lion c) man d) jaguar

14) What will happen to muscles when exposed to more stress such as resistance training?

a) Muscles get stronger and decrease in size. b) Muscles get weaker and decrease in size. c) Muscles get weaker and increase in size. d) Muscles get stronger and increase in size.

15) Which of the following is NOT a type of forest?

a) Tropical dry b) Aqueous arboreal c) Sparse tress and parkland d) Temperate needleleaf

16) Which effect causes the sky to appear blue to us?

a) The Coriolis Effect b) The Greenhouse Effect c) Rayleigh Scattering d) The Placebo Effect

17) The Great Victoria Desert is located in which country?

a) USA b) Egypt c) Australia d) Mexico

18) Reading of a barometer going down is an indication of:

a) snow b) storm c) intense heat d) rainfall

19) What is the most common cause of cardiovascular disease?

a) Fatty deposits in the arteries b) Inadequate supply of red blood cells c) Lack of sodium in the diet d) Increased heartbeat

20) When does nuclear fission occur?

a) When a nucleus divides spontaneously, with no apparent reason. b) When electrical forces inside a nucleus overpower forces. c) When one nucleus bumps into another causing a chain reaction. d) When we cut nuclei into two with a very small cutting device.

21) A television and an electric fan are connected in parallel to a 220 V line. The current in the television is 8 A and in the electric fan is 3 A. What is the current flowing in the line?

a) 11 A b) 24 A c) 5 A d) 2.67 A

22) All of the following are characteristics of metals, EXCEPT ________.

a) good conductor b) brittleness c) malleability d) ductility

23) Australian experts were asked to explore a better way of generating electricity. This is through:

a) undersea cable transmission b) sulphuric reserve actuation c) waterfall reserve actuation d) geothermal utilization

24) What is a young horse called?

a) Colt b) Filly c) Foal d) Hack

25) An atom or a group of atoms which has an excess/deficiency of electrons is called ________.

a) Neutron b) Proton c) Ion d) Molecules

26) What is the resistance of an electric bulb drawing 1.2 A current and 6.0 V?

a) 0.2 ohm b) 0.5 ohm c) 5 ohm d) 2 ohm

27) All of the following are types of flatlands that are NOT called plains, EXCEPT:

a) Playas b) Marshes c) Steppes d) Swamps

28) Which of the following statements is TRUE of nuclear fission?

a) The energy process is identical to that which occurs in the sun. b) Energy is obtained by getting the nucleus of the atoms to break up or split. c) Matter from the lighter atoms is changed into energy. d) Scientists can combine lighter atoms to form heavier atoms.

29) NASA developed a filtration process to make waste water on space flights renewable. Where might this filtration process be used on Earth?

a) In areas where water contains hard minerals. b) In areas where water is used for recreation. c) In areas where water is contaminated. d) In areas where water is salty.

30) What is the main difference between swamps and marshes?

a) Salt water versus fresh water b) Trees versus grassland c) High water table versus low d) Seasonality of precipitation

31) What is the MOST likely reason for a desert plant to have a few or no leaves?

a) To increase photosynthesis b) To decrease photosynthesis c) To increase transpiration d) To decrease transpiration

32) The Great Victoria Desert is located in which country?

a) USA b) Egypt c) Australia d) Mexico

33) The one that produces the quickest heat energy per pound is ________.

a) bread b) roast beef c) fried chicken d) fish with butter

34) What kind of eclipse do we see when the moon is entirely within Earth's umbral shadow?

a) total solar b) partial solar c) total lunar d) partial lunar

35) Which is the cause of change of seasons?

a) The rotation of the Earth b) The tilt of Earth's axis c) The sizes and shapes of land surface features d) The rain-shadow effect

36) Which is the induced voltage across a stationary conductor in a stationary magnetic field?

a) reversed in polarity b) increased c) zero d) decreased

37) Which body organ is responsible for the removal of waste from the blood and body fluids?

a) liver b) pancreas c) kidney d) large intestine

38) The statement that a buoyant force on a floating body is equal to the weight of the fluid displaced is known as the principle or law of ________.

a) Boyle b) Newton c) Archimedes d) Bernoulli

39) Which of the following CORRECTLY describes a refrigeration system?

a) Rejects energy to a low-temperature body. b) Rejects energy to a high-temperature body. c) Removes heat from a high-temperature body and delivers it to a low-temperature body. d) Removes heat from a low-temperature body and delivers it to a high-temperature body.

40) A metal spoon is placed in a cup filled with hot coffee. After some time, the exposed end of the spoon becomes hot even without direct contact with the liquid. What explains this phenomenon?

a) Convection b) Radiation c) Thermal expansion d) Conduction

41) An electromagnetic wave is radiated by a straight wire antenna that is oriented vertically. What should be the orientation of a straight wire receiving antenna?

a) diagonally b) vertically c) horizontally and in a direction parallel to the wave's direction of motion d) horizontally and in a direction perpendicular to the wave's direction of motion

42) When water evaporates, it changes into which of the following states?

a) Solid b) Matter c) Gaseous d) Liquid

43) Beniell travels at high speed from Earth to the star Alpha Centauri which is four light years away. Which one is CORRECT in Beniell's frame?

a) The clocks on earth and on Alpha Centauri are synchronized. b) The trip takes more time than it does in the earth's frame. c) Beniell travels to Alpha Centauri over a length that is shorter than four light years. d) Alpha Centauri travels to Beniell over a length that is shorter than four light years.

44) Which is the largest blood vessel in the body?

a) Alveoli b) Artery c) Aorta d) Vein

45) What is the difference among a typhoon, a hurricane, and a cyclone?

a) While typhoons are strong storms, cyclones are worse, and hurricanes are the strongest of all. b) Hurricanes spin clockwise, cyclones spin counterclockwise, and typhoons are actually tidal waves. c) The storms are the same but the names are used in the Western Pacific, North America, and Indian Oce d) Typhoons are found near the equator, hurricanes in the midlatitudes, and typhoons in the Arctic and

46) A cold-blooded animal is one that ________.

a) lacks red corpuscles b) lacks white corpuscles c) has a variable body temperature d) has a fixed body temperature

47) Which of the following is the BEST description of a white light?

a) It is a pure color that cannot be broken up. b) It is a mixture of red, blue, and yellow. c) It is a mixture of every color. d) It is a mixture of seven colors.

48) Matter is anything that has ________.

a) weight and volume b) mass and volume c) weight and mass d) mass and shape

49) Rutherford observed that most of the alpha particles directed at a metallic foil appear to pass through unhindered, with only a few deflected at large angles. What did he conclude?

a) Atoms consist mainly of empty space and have small, dense nuclei. b) Atoms can easily absorb and re-emit alpha particles. c) Alpha particles behave like waves when they interact with atom. d) Atoms have most of their mass distributed loosely in an electron cloud.

50) What happens to the current-carrying ability of a wire as temperature increases?

a) The wire can't carry any current. b) The wire can carry more current. c) The wire can carry less current. d) There is no change.

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