Terms in this set (22)
a change in an object's state of motion
In the metric system, forces are measured in
The study of the relationships that exist between forces and the motion of objects.
The property of an object which causes it to resist all changes in it's state of motion
a vector quantity that is described as a push or pull
Acceleration of an object varies directly with the applied force and inversely with the _______ of the object.
the measurement of the gravitational force on an object. It is not the same everywhere in the universe.
the sum of two or more vectors
an object moving at a constant velocity
an object at rest
this force is perpendicular to the surface an object is resting or moving on. It is the force exerted by the surface on the object.
The amount of ________________ a projectile encounters depends on the projectile's velocity and surface area. It is usually ignored unless otherwise stated.
mass and speed
Acceleration and force
a force that opposes motion.
For every action, there is an equal and opposite reaction. This law involves action-reaction pairs.
The constant speed an object reaches when falling through a resisting medium.
A graphical technique used to illustrate all of the forces acting on an object.
Objects are accelerating if there is either a change in their rate of motion (speed) or if there is a change in _________.
the study of motion without regards to forces
Second law forces (Net Force) all act on the _______ object.
In freefall, the only force acting on an object is the pull of gravity. This force is measured quantitatively by the objects __________.
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