s Flashcards
boiling point
temperature at which a substance changes from liquid state to gas state
condensation
change of state from gas to liquid by removing heat energy
conduction
flow of energy between substances that are in contact
conductor
material that allows heat energy or electricity to flow easily
convection
flow of heat energy that involves moving liquid or gas particles
freezing point
temperature at which a substance changes from liquid state to solid state
heat energy
energy that flows from matter at a higher temperature to matter at a lower temperature
insulator
material that does not allow heat energy or electricity to flow easily
kinetic energy
energy of movement ; particles that make up matter have kinetic energy
melting point
temperature at which a substance changes from a solid to a liquid state
particle theory of matter
model that explains the behaviour of solids, liquids and gases
radiation
flow of energy in the form of invisible waves
temperature
a measurement of the average kinetic energy of the particles in a substance
what is the difference between temperature, heat and thermal energy
temputure is the average kinetic energy, thermal energy is the total kinetic energy and heat is the energy that flows from matter at a higher temp to a lower temp
4 main points of the particle model of matter
all matter is made up of tiny particles
the particles are always moving
adding heat makes the particles move faster
the particles have space between them