AFOQT Physical Science Practice Test Questions

AFOQT Physical Science Practice Test Questions How do isotopes of the same element differ? - CORRECT ANSWER-They have different number of neutrons Which scientist was responsible for developing the format of the modern periodic table? - CORRECT ANSWER-Mendeleev Current, or the amount of electricity that is flowing, is measured in - CORRECT ANSWER-Amperes or Amps What property of motion explains why passengers in a turning car feel pulled toward the outside of the turn? - CORRECT ANSWER-inertia According to the Ideal Gas Law, if a certain amount of gas is being held at a constant volume, and the temperature is increased, what will happen? - CORRECT ANSWER-The pressure of the gas will increase A long nail is heated at one end. After a few seconds, the other end of the nail becomes equally hot. What type of heat transfer does this represent? - CORRECT ANSWER-Conduction The measure of energy within a system is called - CORRECT ANSWER-heat Which type of nuclear process features atomic nuclei splitting apart to form smaller nuclei? - CORRECT ANSWER-Fission The process whereby a radioactive element releases energy slowly over a long period of time to lower its energy and become more stable is best described as - CORRECT ANSWER-Decay What property of light explains why a pencil in a glass of water appears to be bent? - CORRECT ANSWER-Refraction What unit describes the frequency of a wave? - CORRECT ANSWER-Hertz Which of the following is an example of kinetic enrgy being converted to potential energy - CORRECT ANSWER-A cyclist coasting his way up a hill The boiling of water is an example of a - CORRECT ANSWER-physical change The center of an atom is called the - CORRECT ANSWER-Nucleus When a solid is heated and transforms directly to the gaseuous phases, this process is called - CORRECT ANSWER-sublimation The density of a material refers to its - CORRECT ANSWER-Mass per unit volume The precision of a set of experimentally obtianed data points refers to - CORRECT ANSWER-How close the data points are to the mean of the data A solar eclipse can only occur if - CORRECT ANSWER-the moon is between the earth and sun What wave characteristic is related to the loudness of a sound - CORRECT ANSWER-Amplitude