ASVAB Science questions and answers sores 30 out of 30| graded A+

ASVAB Science questions and answers sores 30 out of 30| graded A+ B The function of an enzyme is to (A) Provide energy for a chemical reaction (B) Speed up a chemical reaction (C) Become hydrolyzed during a chemical reaction (D) Serve as an inorganic catalyst B A one-kilogram mass is dropped from a height of 1 meter. Its kinetic energy just before it hits the ground is about (A) 1 joule (B) 10 joules (C) 100 joules (D) 1,000 joules D The DNA of a cell is found mainly in its (A) Membrane (B) Cytoplasm (C) Vacuoles (D) Chromosomes B Most cells without a cell wall also lack (A) Mitochondria (B) Chloroplasts (C) Cell membranes (D) Vacuoles B The cells that can easily be scraped from the lining of the mouth make up (A) Connective tissue (B) Epithelial tissue (C) Supporting tissue (D) Voluntary tissue D The end product of protein digestion consists of (A) Glucose (B) Fatty acids (C) Glycerol (D) Amino acids C Blood circulation from the lungs goes directly to the (A) Legs (B) Head (C) Heart (D) Digestive system A The glucose content of the blood is regulated by (A) Insulin and adrenaline (B) Nerve stimulation (C) ACTH (D) Progesterone C The ocean current that extends from Florida across the Atlantic Ocean to Europe is (A) El Nino (B) the Japan Current (C) the Gulf Stream (D) the Southwest countercurrent C The member of the solar system with the shortest period of solar revolution is (A) Io (B) Jupiter (C) Mercury (D) Hailey's Comet B The type of meteorological system with the highest velocity winds is the (A) Thunderstorm (B) Tornado (C) Hurricane (D) Sea breeze C A 120 volt electrical power supply produces two amperes to the load. The power delivered is (A) 60 watts (B) 60 ohms (C) 240 watts (D) 240 ohms C Frictional forces usually do NOT (A) Oppose motion (B) Decrease kinetic energy (C) Increase potential energy (D) Produce wear A A magnifying glass is what kind of lens used on objects how far away? (A) Convex lens used closer than one focal length (B) Concave lens used closer than one focal length (C) Convex lens used beyond one focal length (D) Concave lens used beyond one focal length D The mass of one cubic meter of water is approximately (A) 1 kilogram (B) 10 kilograms (C) 100 kilograms (D) 1,000 kilograms D A magnetic compass points in the direction of (A) True north (B) The geographic North Pole (C) The magnetic North Pole (D) The local magnetic field D The half-life of iodine-131 (I-131 for short) is 8 days. Approximately how long would it take for 16 milligrams of I-131 to decay to a half milligram of I-131? (A) 4 days (B) 8 days (C) 14 days (D) 32 days B A gaseous product of the fermentation of sugar is (A) Carbon monoxide (B) Carbon dioxide (C) Sulfur dioxide (D) Oxygen B Nitrates can be very useful as (A) Detergents (B) Fertilizers (C) Fuels (D) Solvents C The number of atoms in a molecule of CuSO4 5H2O is (A) 15 (B) 18 (C) 21 (D) 29 D Which substance can be used to treat drinking water of questionable purity? (A) Ammonia (B) Chlorine (C) Hydrogen Chloride (D) Iodine A A viral infection in humans characterized by a very long time between the initial exposure and the exhibition of the symptoms is (A) AIDS (B) Measles (C) Pneumonia (D) Chicken pox A The beneficial relationship between termites and the protozoa that inhabit their digestive systems is called (A) Symbiosis (B) Parthenogenesis (C) Mitosis (D) Phagocytosis C Erosion and depletion are problems associated with (A) Blood circulation (B) The ozone layer (C) Soil conservation (D) Cardiovascular exercise B The particle with a ___ charge in the nucleus of an atom is a(n) ___ (A) positive, electron (B) positive, proton (C) negative, neutron (D) neutral, positron