### CPO Foundations Phys Sci Chtr 1--5

N. Brown

No description

 zero when moving objects slide over each other, some kinetic energy is converted to this form of energy; also called thermal energy conservation of momentum the sum of all forces acting on an object milli type of stored energy; equals mass times gravity times height; increases with the height of an object work an experiment in which tests of a hypothesis are identical except for changes in a single independent variable meter variable that the experimenter manipulates during an experiment; usually graphed on the x axis energy rate of change in velocity; acceleration occurs if either speed or direction change first a push or a pull inverse always less than 100% due to friction; equals 100% times output Work/input work power the slope of a graph having distance on the y axis and time on the x axis net force a force exerted as objects move against each other, due to sticking of surfaces together; acts in a direction that opposes motion Newton multiplication of force by a simple machine; MA; equals output force divided by input force controlled metric unit of measure for length deceleration metric prefix showing that 1/100 units are present; for example, 1 cm = 1/100m independent type of graphical relationship showing one value increasing as the other is decreasing fulcrum unit of work or energy; a force of 1 N exerted over a distance of 1 m; 1 Nm joule acceleration when speed is constant and direction is constant second Newton's law stating that objects remain at rest unless acted on by unbalanced forces friction metric unit of measure for mass nine a tests of a hypothesis kinetic the ability to do work (to make a mass move) weight watts; the rate at which energy is used; work/time average speed Newton's law stating that forces act in pairs of equal size but opposite direction kilogram unit describing power; equals use of 1 Joule of energy in 1 s g symbol p; p=mv mechanical advantage multiple by which kinetic energy increases if speed increases three times slope term for negative acceleration liter metric unit of measurement for volume third rotating (balancing) point for a lever input arm graphical relationship showing both x and y values increasing or decreasing simultaneously efficiency sum of potential intertia the side of a lever that a person exerts force upon force equals the mass of object times g; the force gravity exerts on a mass; changes if g changes horsepower metrix prefix showing that 1000 units are present; for example, 1 km = 1000m centi distance divided by time; direction is indicated by a or - sign; if direction isn't described, then the value is termed speed mass equals 746 watts potential Newton's law stating that F=ma hypothesis force X distance; measured in Newton-meters or Joules total type of energy causing motion heat an educated guess which is either supported or not when conclusions are drawn watt how much matter an object contains; measured in g or kg; constant anywhere in the universe velocity law stating that energy can neither be created nor destroyed, but can be converted from form to form acceleration property of matter increasing with mass conservation of energy acceleration due to gravity; 9.8 m/s/s on earth dependent when objects collide, the sum of their momentums (p) before constant metric prefix showing that 1/1000 units are present; for example, 1mm = 1/1000 m experiment description of velocity when a distance/time graph is a straight line direct unit of F; equivalent to 4.48 lbs; equals 1 kg m/s/s momentum rise over run; (y2-y1)/(x2-x1) kilo the variable that changes as a result of the manipulations in the independent variable; usually graphed on the y axis

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