18 terms

# Newton's laws physics

#### Terms in this set (...)

Newton's first law
Add object that is at rest will remain at rest and an object that is moving will get to you to move in a straight line with constant speed if and only if the net force acting on the object is zero
Force
A push or a pull
Interaction pair
a set of two forces that are in opposite directions, have equal magnitudes, and act on different objects
Tension
a force exerted by any segment of a rope or string on an adjoining segment
Net force
the vector sum of two or more forces acting on an object
Equilibrium
A state of balance, net force on an object is zero
Drag force
a force exerted by a fluid on an object moving through the fluid
Newton's Second Law
The acceleration of an object is directly proportional to the net force on it and inversely proportional to its mass, F=ma
apparent weight
The support force acting on an object
Contact force
a push or pull on one object by another that is touching it
Newton's Third Law
For every action there is an equal and opposite reaction
Normal field
A perpendicular contact force exerted by surface or another object
Inertia
The tendency of an object to resist a change in motion
free body diagram
a diagram showing all the forces acting on an object
terminal velocity
The constant velocity of a falling object which is with the drag force equals the gravitational force
weightlessness
an object's apparent weight of zero that results when there are no contact forces pushing up on the object
gravitational field
Vector quantity that relates objects mass to the gravitational force it experiences at a given location
Weight
The gravitational force experienced by an object