a group of related objects that interact
What is system?
to move toward; come together
What is converge?
fuels such as coal, oil, and natural gas that formed from the remains of prehistoric plants and animals
What is fossil fuels?
to change from one form or system to another
What is convert?
the way the surface of an object feels
What is texture?
a change in form, appearance, nature, or characteristic
What is transformation?
What is heat?
a machine in which moving gas or liquid is used to turn a wheel or cylinder
What is turbine?
a series of marks and numbers that is used for measurement
What is scale?
a material that takes in wave when the wave hits it
What is absorber?
the energy an object has due to its motion
What is kinetic energy?
the amount of heat required to change the temperature of 1 gram of a substance by 1 degree Celsius
What is specific heat?
the process of changing one form of energy to another
What is energy conversion?
the total potential and kinetic energies of the particles in a substance
What is internal energy?
the transfer of thermal energy by electromagnetic waves
What is radiation?
the stored energy an object has due to its position
What is potential?
the state in which no thermal energy transfers occurs because both substances are at the same temperature
What is thermal equilibruim?
the principle that energy cannot be created or destroyed: the total amount of energy in the universe is always the same
What is law of conservation of energy?
a temperature at which the motion of all atoms stop: the coldest possible temperature
What is absolute zero?
a type of wave that carries energy through space where there is almost no matter
What is electromagnetic wave?
PE= mgh
the faster the kinetic energy of molecules, the higher the _______
What is temperature?
which 2 energies are potential energy?
What is chemical and nuclear?
what is Kelvin's boiling point?
What is 373 K?
electromagnetic waves carry energy through matter, but they also carry energy through _____ _____.
What is empty space?