heat & particle
increases when heat is added to matter
what is kinetic energy?
temperature measures this energy of molecules
average kinetic energy
materials ability to conduct heat is this type of property
physical property
unlike most substances, water ___ when it freezes.
when heat is added to matter, it ___
expands
heat increases the energy of these parts of matter
what are particles?
total kinetic and potential energy of molecules in an object
thermal energy
metals feel colder than nonmetals because they do this more effectively
conduct heat away from your hand
arrangement of molecules
a thermometer works because the liquid inside changes this when heated or cooled.
what is volume?
when particles move faster, the objects temperature becomes ___
what is higher?
the transfer of thermal energy from a warmer object to a cooler object.
the conductivity of a material affects how you perceive this.
temperature
icebergs float because ice is compared to liquid water
these two liquids are commonly used in thermometers.
alcohol and mercury?
removing heat makes particles move this way
slower
heat is often measured in these units
calories
construction
what is weathering?
materials with high rates of expansion and contraction are useful in this measuring device.
thermometer
when particles slow down and draw closer together, matter _____
what is contract?
thermal energy
structures are built with these to prevent cracking from expansion and contraction.
expansion joints
because ponds freeze only on top, this as allowed to continue during winter.
life in the water
cracks and deformation.