Term
|
Definition
mass x acceleration of gravity,
weight=mg |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| If the vector sum of all forces acting on an object is zero, then that something is mechanical equilibrium. |
|
|
Term
|
Definition
| Every object continues in a state of rest or of uniform speed in a straight line unless acted on by a nonzero force |
|
|
Term
|
Definition
The acceleration produced by a net force on an object is directly proportional to the net force, is in the same direction as the net force, and is inversely proportional to the mass of the object.
a=F/m |
|
|
Term
|
Definition
| Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first |
|
|
Term
|
Definition
|
|
Term
|
Definition
| the property of all things to resist changes in motion |
|
|
Term
| Aristotle, wrong teachings proven by Galileo |
|
Definition
heavy objects fall faster than lighter objects
moving objects need forces to keep them moving |
|
|
Term
|
Definition
| quantity of matter in an object, measurement of inertia, form of energy |
|
|
Term
|
Definition
| sluggishness that an object exhibits in response to any effort made to start it, stop it, or change in any way its state of motion |
|
|
Term
|
Definition
| inertia in motion, vector quantity |
|
|
Term
|
Definition
| when something includes magnitude and direction |
|
|
Term
|
Definition
| any influence that tends to accelerate an object; a push or pull; measured in newtons (N) vector quantity |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| law of universal gravitation |
|
Definition
|
|
Term
|
Definition
|
|
Term
| Newton's first law of motion is also called |
|
Definition
|
|
Term
| acceleration is directly proportional to |
|
Definition
|
|
Term
| acceleration is inversely proportional to |
|
Definition
|
|
Term
|
Definition
| motion under the influence of gravity alone (no air resistance) |
|
|
Term
|
Definition
| acceleration of a freely falling object. Its value near sea level 9.81 m/s squared |
|
|
Term
|
Definition
| friction, or drag, that acts on something moving through air |
|
|
Term
|
Definition
| is reached when air resistance on a falling object balances the objects weight (downward force due to gravity) |
|
|
Term
|
Definition
| mutual action between objects during which each object exerts an equal and opposite force on the other |
|
|
Term
|
Definition
| the action and reaction pair of forces that occur in an interaction |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| impulse-momentum relationship |
|
Definition
| Impulse=change in momentum |
|
|
Term
| Law of conservation of momentum |
|
Definition
| in the absence of an external force, the momentum of a system remains unchanged |
|
|
Term
| Law of Conservation of Energy |
|
Definition
| Energy cannot be created or destroyed; it may be transformed from one form into another, but the total amount of energy never changes |
|
|
Term
|
Definition
| property of a system that enables it to do work |
|
|
Term
|
Definition
| product of the force and distance moved by the force |
|
|
Term
|
Definition
| one newton-meter = newton x meter |
|
|
Term
|
Definition
| the energy that matter possess due to its position-- energy that is stored and held in readiness |
|
|
Term
| Gravitational potential energy |
|
Definition
| the potential energy due to an elevated position. |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| one joule per second (J/s) |
|
|
Term
|
Definition
| the mass of an object multiplied by its velocity. Inertia in motion |
|
|
Term
|
Definition
| is a change in velocity-- a change in speed, a change in direction, or both |
|
|
Term
|
Definition
| the collective findings of human about nature, and a process of gathering and organizing knowledge about nature |
|
|
Term
|
Definition
| an educated guess; a reasonable explanation of an observation or experimental result that is not fully accepted as factual until tested over and over again by experiment |
|
|
Term
|
Definition
| a synthesis of a large body of information that encompasses well-tested and verified hypothesis about a certain aspects of the natural world |
|
|
Term
|
Definition
| simply stated, a push or pull |
|
|
Term
|
Definition
| The property of things to resist changes in motion |
|
|
Term
|
Definition
| the quantity of matter in an object |
|
|
Term
|
Definition
| The measure of inertia or sluggishness that an object exhibits in response to any effort made to start it, stop it, deflect it, or change in any way its state of motion |
|
|
Term
|
Definition
| The force due to gravity on an object |
|
|
Term
|
Definition
| The force with which a body presses against a supporting surface. |
|
|
Term
|
Definition
| The distance traveled per time |
|
|
Term
|
Definition
| The speed of an object and specification of its direction of motion |
|
|
Term
|
Definition
| The rate at which changes with time; the change in velocity may be in magnitude or direction or both |
|
|
Term
|
Definition
|
|
Term
|
Definition
| The SI unit (metric unit) for force |
|
|
Term
|
Definition
| An arrow that represents the magnitude and direction of a quantity |
|
|
Term
|
Definition
| Falling only under the influence of gravity--falling without air resistance |
|
|
Term
|
Definition
| The speed at which the acceleration of falling objects terminates when air resistance balances its weight |
|
|
Term
|
Definition
| Inertia in motion, given by the product of the mass of an object |
|
|
Term
|
Definition
| The product of the force acting on an object and the time during |
|
|
Term
|
Definition
| The property of a system that allows it to do work |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| The product of the force and the distance moved by the force |
|
|
Term
|
Definition
|
|
Term
|
Definition
| The rate at which energy is expended |
|
|
Term
|
Definition
| A device, such as a lever or pulley, that increase (or decreases) a force or simply changes the direction of a force |
|
|
Term
|
Definition
| The percentage of the work put into a machine that is converted into useful work output |
|
|
Term
|
Definition
| Every object continues in a state of rest, or in a state of motion in a straight line at constant speed, unless acted on by a net force |
|
|
Term
| Law of Conservation of Momentum |
|
Definition
| In the absence of an external force, the momentum of a system remains unchanged. Hence, the momentum before an event involving only internal force is equal to the momentum after the event |
|
|
Term
|
Definition
| The acceleration produced by a net force on an object is directly proportional to the net force, is in the same direction as the net force, and is inversely proportional to the mass of the object` |
|
|
Term
| Law of Conservation of Energy |
|
Definition
| Energy cannot be created or destroyed; but it may be transformed from one form into another, but the total amount of energy never changes |
|
|
