Acids, Bases and Solutions
Law of universal gravitation
gravitational force depends on the mass of two objects involved and on the distance between them
for every action, there is an equal and opposite reaction its..
Newton's third law
most basic device for making work easier. compound machines are made up of multiple simple machines
simple machines
Fuel that consists of carbon-based molecules derived from the decomposition of once-living organisms
Fossil fuels
what are ways to increase solubility
What is heat the solvent, stir, decrease pressure, make solute particle very small
a force that opposes motion and that occurs when things slide or roll over each other
Ability to recognize that objects can e transformed in some way, visually or phycially, yet still be the same in number, weight, substance, or volume is...
the length of the inclined plane divided by the height of the inclined plane
mechanical advantage of an inclined plane is equal to what?
Refers to a process in which energy (as heat) flows from the surroundings into the system
what is Endothermic
what happens when with gasses in liquids, as the temperature goes up, solubility
Elapsed Time is...
The length of time that passes from one even to another.
two forces having equal strength in opposite directions is...
action-reaction pairs
the direction of force
what do first class levers always change? or what do second class levers never change?
he natural tendency for the components of the universe to become disordered is
Effects of solutes on solution
Solute rasie the boiling point of a solvent
The rate at which the position of an object changes its...
an object that orbits another object and is pulled downward in a curved path is a..
the load (output force) is between the fulcrum and the input force
second class levers
A device used to determine the heat associated with a chemical or physical change is..
what are Ionic compounds
conduct electric current in water, salt water is one of these.
the force and attraction between any two objects that have a mass
Matter is not created nor destroyed in any chemical or physical change
what joule the unit for?
At constant pressure, a change in enthalpy (∇H) is equal to the energy flow as heat.
Enthalpy