The _________ of a material is defined by the equation density = mass / volume, The density of a material is defined by the equation density = _____ / ________, When substances change state (melt, freeze, boil, evaporate, condense or sublimate), mass is c_________., When substances change s_____ (melt, freeze, boil, evaporate, condense or sublimate), mass is conserved., Energy must be t__________ to a substance to make it change state., This energy is then used to overcome the interm_________ f_________ between the particles., E__________ occurs from the surface of a liquid when its temperature is below its boiling point., Evaporation occurs from the surface of a liquid when its temperature is below its b______ p______., Changes of s_____ are physical changes which differ from chemical changes because the material recovers its original properties if the change is reversed., Changes of state are ph_______ changes which differ from chemical changes because the material recovers its original properties if the change is reversed., Changes of state are physical changes which differ from chemical changes because the material recovers its original properties if the change is r__________., A chemical change involves the r__________ of particles and creating a different substance., A chemical change involves the rearranging of particles and creating a different s___________., A physical change involves the i_____/r_______ of energy from a substance to create a state change., A physical change involves the input/removal of e_______ from a substance to create a state change., The __________ of a gas are in constant random motion (Brownian motion), The molecules of a gas are in constant random motion (B_________ motion), The t___________ of the gas is related to the average kinetic energy of the molecules., The temperature of the gas is related to the average k________ e________ of the molecules., Changing the temperature of a gas, held at constant volume, changes the p__________ exerted by the gas., The v________ of the gas increases as the temperature increases., Gas pressure is caused by gas p__________ hitting the wall of their container, Gas pressure is caused by gas particles hitting the w____ of their c___________, G____ particles are hitting you, right now!, Gas pressure can increase by: Increasing the t___________, Gas pressure can increase by: Decreasing the size of the c________, Gas pressure can increase by: Increasing the number of gas p__________ in the container.

Physics

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