Newtons Laws Vocab Flashcards
Equilibrium Rule
Equation
Force
Push or a pull
Inertia
The property by which things tend to remain at rest, and in motion
Net force
The sum of all forces that act on an object
Newton
The scientific unit of force
Newton’s first law of motion-the law of inertia
Every object continues in a state if rest, or in a state of motion in a straight line at constant speed, unless acted on by a nonzero net force
Speed
The distance traveled per time
Support force
The force that supports an object against gravity
Vector quantity
A quantity that specifies direction as well as magnitude
Velocity
The speed of an object and specification of its direction of motion
Acceleration
The rate at which velocity changes with time; the change may be in magnitude or direction or both
Air drag
Frictional resistance due to motion through air
Free fall
Motion under the influence or gravitational pull only
Friction
The resistive force that opposes the motion or attempted motion of an object past another
Inversely
When two values change in opposite directions, so that if one increases and the other decreases by the same amount, they are said to be inversely proportional to each other
Kilogram
The fundamental SI unit of mass. One kilogram (symbol kg) is the mass of 1 liter (L) of water of 4. Degree C
Mass
The amount of matter in an object; the more mass an object has, the more it resists changes in motion
Newtons Second Law
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
Terminal speed
The speed at which the acceleration of falling object terminates because air drag balances it’s weight
Terminal velocity
Terminal speed with direction of motion ( down for falling objects)
Volume
The quantity of space of an object occupies
Weight
The force due to gravity of an object
Force pair
The action and reaction pair of forces that occur in an interaction
Interaction
Mutual action between objects in which each object exerts an equal and opposite force on the other
Newton’s third law
Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first. Of put another way, “to every action there is always an opposed equal reaction”
System
Any object or collection of objects being studied
