Newton's First Law
All objects continue in a state of rest or of motion in a straight line at a constant speed, unless it changes due to forces exerted upon it.
law of inertia
newtons first law
mass is measured in...
the quantity of matter in an object
the force due to gravity on an object
forces are measured in ...
the combination of all forces acting on an object
a force that counteracts the weight
occurs when the net force is zero
a push or a pull
the force that acts between materials that touch as they move past each other
the property of a body t resist change
two values change in opposite directions
Newton's second law
the friction acting on something moving through air
free body diagram
a diagram showing all the forces acting on an object
when acceleration terminates; air resistance = weight
a force is part of an ...
Newton's third law
when one object exerts a force on a second object, the second object exert an equal and opposite force on the first object
1st force in an interaction
2nd force in an interaction