Chaptet 11-Energy Flashcards
What is the law of the conservation of energy state
It states that energy cannot be made or destroyed it can only be changed one form to another
How do scientist describe energy
Scientist describe energy as a property That something has which allows it to exert a force or to do work
What are the two kinds of energy
Potential energy, and kinetic energy
Potential energy and kinetic energy can be further divided into eight more types, what can potential energy be divided into (3)
Gravitational potential energy, strain energy, Chemical energy
What other kinds of energy can kinetic energy be broken into, five
Electromagnetic energy, internal energy, electrical energy, sound energy, and kinetic energy of moving bodies
What three parts does an energy transfer diagram have
Energy input in an hour, energy converter Or a transducer, energy output and an arrow
Give an example of Energy transfer diagram
Blowing up a balloon
Kinetic energy—>balloon—>strain energy
What are the two types of energy resources
Non-renewable energy resources and renewable energy resources
Name some nonrenewable energy sources
Fossil fuels, radioactive elements
Give some examples of some renewable energy sources
Waves, geothermal, wood fuel, solar, wind, hydroelectricity
How to heat and thermal energy move, three ways?
Conduction, convection, and radiation
What is conduction?
In conduction the heat energy passes from one particle in a substance to the next One it touches 🏐->🏐->🏐
Put gas solid liquid in order of conduction occurs Easiest to hardest and explain why
Conduction occurs The easiest in solids because they are close together, this is late and liquids because the particles move that, and hardly at all and gas is because the particles are too far away to touch one another
Where does conduction not take place
In the vacuum F out of space
Conviction only occurs in…
Liquids and gases
What is convection not occur solids
Because the items do not move, not in a vacuum such as our space where there is an absence of. Particles
What happens in conviction
The particles that receive the heat moves and take it with them to a cooler region of the substance
Heat energy can travel as Electro magnetic waves by…
Radiation
What Can radiation to the convection and conduction cannot, and why?
Radiation can pass through the air or a vacuum such as out of spaceBecause particles are not involved in the transfer of radiation
Surface of a material to fix the amount of heat radiates or absorbs, give two examples of this
Black surface radiates and absorbs the most amount of heat in a given time, a light shiny surface radiates and observes the least amount of heat in a given time
The particles in a liquid have different amounts of energy the higher the energy…
The faster they move
Fast-moving particles near the liquid surface move so fast that they…
Breakthrough the surface, separate from other liquid particles and become a gas
When does the process of Evaporation occur?
Below the boiling point of a liquid
The gas produced when the water evaporates is called…?
Water vapor
When does hotter high energy particles leave the liquid there is less heat energy in the liquid and its temperature…?
Drops
