Thermal Energy & Heat Crossword Puzzle

QUESTIONS LIST:

• matter : unlike conduction and convection, radiation does not require _ to transfer thermal energy.
• expands : as the thermal energy of matter increases, it's particles spread out and the substance _ .
• convection : the circular motion within a heat fluid is called a _ current.
• cooler : heat flows from a warmer object to a _ one.
• metals : _ such as silver and stainless steel are good conductors.
• radiation : the transfer of energy by electromagnetic waves is _ .
• temperature : _ is the measure of the average kinetic energy of the individual particles of matter.
• water : unlike most substances, _ expands slightly when it freezes.
• wool : _ is an example of a good insulator.
• specific : the amount of energy needed to raise the temperature of 1 kilogram of material by 1 kelvin is called it's _ heat.
• conductor : a material that transfers thermal energy well is called a _ .
• thermal : _ energy is the total energy of all the particles in an object.
• celsius : the temperature scale used in most of the world.
• mass : thermal energy change is calculated with the following formula: energy change = _ x specific heat x temperature change.
• kelvin : -273 degrees celsius is equal to zero on the _ scale.
• heat : thermal energy moving or transferred from a warmer object to a cooler object is _ .
• absolute : the lowest possible temperature is called _ zero. it is the temperature at which no more energy can be removed from matter.
• insulator : a/an _ does not transfer heat well.
• contracts : as matter cools, it usually decreases in volume or _ .