Science (Thermal Energy Part 1) Flashcards
All matter is made up of molecules in constant motion
Tempurature
Two types of energy temperature has
Thermal & Kinetic
Proportional to the average kinetic energy of an objects molecules
Temperature
More kinetic energy is in…
Hot Water
Less kinetic energy in…
Cold Water
More ________ ________ means the faster the molecules move & slower ________ ________ means the molecules move slower
Kinetic Energy
An increase in KE that causes molecules to spread further apart and makes substances expand
Thermal Expansion
A decrease in KE that causes molecules to move closer together
Thermal Contraction
Measure in temperature used in the US
Fahrenheit
Measure in temperature used worldwide
Celcius
Lowest temperature something can have
Kelvin
Molecules move around freely and have no definite shape
Gas
Molecules move around freely and take the shape of its container but have a definite volume
Liquid
Molecules are compact together and don’t have much room to move
Solid
Transfer of heat until both objects are the same temperature
Thermal Equilibrium
