IFSTA 7th Edition Chapter 4: Fire Dynamics Questions & Correct Answers (Rated A+)

True or False: Oxidizers affect a fire because they are combustible - ANSWER-False. Oxidizers are not combustible but will support or enhance combustion Physical science is the study of what two things? - ANSWER-Matter and energy Oxidation - ANSWER-A chemical reaction involving the combination of an oxidizer, such as oxygen in the air, with other materials. Energy - ANSWER-The capacity to perform work Work - ANSWER-This occurs when a force is applied to an object over a distance or when a substance undergoes a chemical, biological, or physical change. In the case of heat, work means increasing a substance's temperature Potential Energy - ANSWER-The amount of energy that an object can release at some point in the future. Stored energy Heat of Combustion - ANSWER-The potential energy available for release in the combustion process Kinetic Energy - ANSWER-The energy that a moving object possesses What are the 7 types of energy? - ANSWER-Chemical Thermal Mechanical Electrical Light Nuclear Sound How is energy measured in the International System of Units (SI)? - ANSWER-With joules How many joules is required to change the temperature of 1 gram of water by 1 degree Celsius? - ANSWER-4.2J