Intro to Energy
the two types of energy
What are potential and kinetic energy?
this is how the particles move in a solid, liquid, and a gas
What is a solid that has vibrating particles, a liquid that has particles sliding past each other, and a gas that has particles freely moving.
thermal energy and how is this measured
what is the total kinetic energy of all particles in a substance? what is joules (J).
renewable resource
What is an energy source that can be easily reproduced or replaced by nature?
the factors that contribute to the amount of kinetic energy and object has
What are mass and speed?
Kinetic theory of matter
States that all of the particles that make up matter are constantly in motion.
two factors that determine thermal energy of a substance
what is the temperature and the total amount of particles?
name the three fossil fuels
What are coal, natural gas, and petroleum?
mechanical energy
What is the sum of an object's kinetic energy and potential energy?
relating to average kinetic energy and temperature
When the average kinetic energy of its particles increases the temperature increases, and when the average kinetic energy of its particles decreases, the temperature decreases.
heat
What is the energy transferred from an object at a higher temperature to an object at a lower temperature?
the main component of natural gas
What is methane?
When chemical energy is converted in the body....many others
Water freezes at 0 degrees on Celsius scale, 32 degrees on Fahrenheit scale, and 273 on kelvin scale. water boils at 100 degrees on a Celsius scale, 212 on a Fahrenheit scale, and 373 on a kelvin scale.
calorie...one calorie is equal to _________ J.
What is the amount of energy needed to raise the temperature of 1g of water by 1 degree Celsius?
4.18 J
this is why fossil fuels are dangerous and harmful
What is a product called carbon dioxide, a greenhouse gas?
the difference between electromagnetic energy and electrical energy
the temperature at which motion of particles stops.
describe conduction, convection, and radiation.
What is the transfer of energy as heat from one substance to another through direct contact?
What is the transfer of energy as heat by the movement of a liquid or gas?
What is the transfer of energy by electromagnetic waves?
Name the renewable and nonrenewable energy forms
nonrenewable - fossil fuels and nuclear energy.
renewable - solar, hydroelectric, wind, geothermal, and energy from burned biomass.