Conceptual Physics
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Created by:
JamieNawrocki on November 20, 2011
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55 terms
Terms | Definitions |
|---|---|
 Unit of power | Horsepower |
| A simple machine and ramp | Inclined Plane |
| A gear ration | Output/Input |
| Work input is used to describe what type of machine? | Simple Machine |
| The ratio of output force to input force of a simple machine is called ? | Mechanical Advantage |
| The ratio of useful work output to total work input is called? | Efficiency |
| The unit used for force is what? | Newton |
| The metric unit for work is? | Joule |
| Power is measured in what unit? | Watt |
| A set of rules that is based upon recurring facts that have been carefully documented | Natural Law |
| This helps people communicate amounts of things | Units |
| This shows how two variables are related | Graph |
| An educated guess that predicts the relationship between the independent and the dependent variables in the expiriment | Hypothesis |
| What is the equation for speed? | V=D/T |
| What is the equation for distance? | D=VxT |
| This system is easily used because it is based on factors of 10 | Metric |
| This changes according to where you are at in the universe | Weights |
| Units for velocity | m/sec |
| The slowing down of an object | Deceleration |
| Newtons 2nd law formula | F=mxa |
| Units for acceleration | m/sec squared |
| An object at rest will stay at rest or an object in motion will stay in motion with the same speed and direction | Newtons 1st law |
| Acceleration due to gravity | 9.8 m/sec squared |
| A force that gives 1kg mass an acceleration of 1 m/sec squared | newton |
| The force of gravity is balanced by the air resistance of an object | Terminal speed |
| Slope | Rise/Run |
| A device with moving parts that work together to accomplish a task | Machine |
| Includes everything you do to make the machine work | Input |
| What the machine does for you | Output |
| A machine is the ratio of the output force to the input force | Mechanical advantage |
| The force that results from relative motion between objects | Friciton |
| Stored energy that comes from position | Potential Energy |
| Energy from motion | Kinetic Energy |
| The total momentum in a system of interacting objects cannot change as long as all forces act only between the objects in the system | Law of the Conservation of Momentum |
| One of these is the energy needed to push with a force of one newton over a distance of one meter | Joule |
| The law states that energy can never be created or detroyed just converted from one form into another | Law of Conservation of Energy |
| Objects that change shape or stick together. Energy is not destroyed but it is transformed into forms | Inelastic Collision |
| For every action force, there is a reaction force equal in strength and oppostire in direction | Newtons 3rd law |
| Measures a moving objects resistance to changes in its motion p=mv | Momentum |
| A change in momentum created by a force exerted over time | Impulse |
| Occurs when objects collide so that the total kinetic energy remains the same before and after the collison | Elastic Collision |
| A fundamental quantity of the universe; measure of ability to change or create change | Energy |
| A form of energy fxd | Work |
| Ft=mv2-mv1 | Impulse formula |
| p=mv | Momentum formula |
| A factor that affects the behavior of a system | Variables |
| Anything that has mass and takes up space | Matter |
| A carefully designed test done under controlled conditions | Expiriment |
| Measures the amount of matter that makes up an object | Mass |
| This system of measurment uses feet | English |
| Distance something traveled by the time it took to travel that far | Speed |
| This type of variable is kept the same in the expiriment | Control |
| What variable is placed on the y-axis | Dependent |
| The detailed explanation of the results of an expiriment | Analysis |
| The independent variable goes on which axis | x-axis |
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