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Science Chpt. 15

Energy

QuestionAnswer
What is Energy? The ability to do work
What is the formula of Kinetic Energy? KE=1/2 mv^2
What is Potential Energy? energy that is stored as a result of position or shape
What is Gravitational potential energy? Potential energy that depends on an object's height
What does an object's Potential Energy depend on? mass, height, and the acceleration due to gravity
What is the Gravitational potential energy formula? PE=mgh
What is elastic potential energy? The potential energy of an object that is stretched or compressed
What are the major forms of energy? Thermal energy, chemical energy, electrical energy, electromagnetic energy, nuclear energy
What is mechanical energy? The energy associated with the motion and position of everday objects
What is Thermal Energy? The total potential and kinetic energy of all the microscopic particles in an object make up its thermal energy
What is chemical energy? The energy stored in chemical bonds
What is electrical energy? The energy associated with electric charges
What is electromagnectic energy? A form of energy thta travels through space in the form of waves
What is nuclear energy? The energy stored in atomic nuclei is known as nuclear energy
What is energy conversion? The process of changing energy from one form to another
What does the Law of Conservation of Energy state? It states that energy cannot be created or destroyed
As an object falls, what happens to the gravitational potential energy? The gravitational potential energy of the object is converted to the kinetic energy of motion as the object falls.
What is Einstein's Equation? And what does it state? E=mc^2. It states that energy and mass are equivalent and can be converted into each other.
What are nonrenewable energy resources? They exist in limited fquantities and, once used, cannot be replaced except over the course of millions of years
Examples of Nonrenewable resources... oil, natural gas, coal, and uranium
What are fossil fuels? Fossil fuels were formed underground from the remains of once-living organisms.
Examples of Fossil fuels... oil, natural gas, and coal
What are Renewable Energy resources? Resources that can be replaced in a relativley short period of time.
Where do most renewable energy resources originate? Directly or indirectly from the sun.
Examples of renewable energy resources... hydroelectric, solar, geothermal, wind, biomass, and, possibly in the furture, nuclear fusion.
What is hydroelectric energy? energy obtained from flowing water
What is solar energy? Sunlight that is converted into useable energy
What is geothermal energy? thermal energy beneath Earth's surface
What is biomass energy? The chemical energy stored in living things
What does a hydrogen fuel cell do? Generates electricity by reacting hydrogen with oxygen
What is energy conservation? Finding ways to use less energy or tu use energy more efficiently
Created by: 12vkaulins
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