AFOQT Physical Science Practice Test Questions and answers 2023

How do isotopes of the same element differ? They have different number of neutrons Which scientist was responsible for developing the format of the modern periodic table? Mendeleev Current, or the amount of electricity that is flowing, is measured in Amperes or Amps What property of motion explains why passengers in a turning car feel pulled toward the outside of the turn? 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? 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? Conduction The measure of energy within a system is called heat Which type of nuclear process features atomic nuclei splitting apart to form smaller nuclei? 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 Decay What property of light explains why a pencil in a glass of water appears to be bent? Refraction What unit describes the frequency of a wave? Hertz Which of the following is an example of kinetic enrgy being converted to potential energy A cyclist coasting his way up a hill The boiling of water is an example of a physical change The center of an atom is called the Nucleus When a solid is heated and transforms directly to the gaseuous phases, this process is called sublimation The density of a material refers to its Mass per unit volume The precision of a set of experimentally obtianed data points refers to How close the data points are to the mean of the data A solar eclipse can only occur if the moon is between the earth and sun What wave characteristic is related to the loudness of a sound Amplitude