Praxis 5442 - Physical Science Latest Update Graded A+

Praxis 5442 - Physical Science Latest Update Graded A+ [Ca(NO3)2] calcium nitrate 1st law of thermodynamics The principle of conservation of energy. Energy can be transferred and transformed, but it cannot be created or destroyed. 2nd law of thermodynamics The principle whereby every energy transfer or transformation increases the entropy of the universe. Ordered forms of energy are at least partly converted to heat, and in spontaneous reactions, the free energy of the system also decreases. 3rd law of thermodynamics the law that states that in order for motion to stop we have to reach absolute zero Abosorption Occurs when a ray of light strikes a surface. The energy from the light is transferred to the surface material. Absorbing surfaces prevent reflection or diffusion of light striking on the surface acid & base An ____ is a compound that can donate a proton, while a ____ is a compound that can accept a proton. acid sour taste, feels like water, active metals have a reaction, ph less than 7, turns blue litmus paper red examples-hydrochloric acid, lemon juice, vinegar, milk, mustard, soda ampere unit used to measure electric current Amplitude For a wave or vibration, the maximum displacement on either side of the equilibrium (midpoint) position. Ar Argon (noble gas) atom Smallest unit of an element atomic number the number of protons in the nucleus of an atom, the number identifies the type of atom, each element is identified by a specific number base taste bitter, feels slippery, active metals do not