ANSWERS|GRADED A+|GUARANTEED 100% PASS
Vector -CORRECT ANSWER-A quantity that involves both magnitude and direction.
Scalar -CORRECT ANSWER-A quantity that does not involve direction.
Displacement -CORRECT ANSWER-A net distance traveled including direction; An objects
change in position.
Two-Dimensional Vectors -CORRECT ANSWER-Vectors that lie flat in a plane and can be
written as the sum of a horizontal vector and a vertical vector.
Unit Vectors -CORRECT ANSWER-Special vectors that have a magnitude of 1. These include
horizontal basis vector, i, and vertical basis vector, j.
Position -CORRECT ANSWER-An objects location in a certain space.
Newton's First Law -CORRECT ANSWER-An object will continue in its state of motion unless
compelled to change by a force impressed upon it. Also called Law of Inertia
Inertia -CORRECT ANSWER-An object's natural resistance to changes in their state of motion.
Newton's Second Law -CORRECT ANSWER-Predicts what will happen when an unbalanced
force does act on an object: the object's velocity will change / the object will accelerate.
, Newton's Third Law -CORRECT ANSWER-To ever action, there is an equal but opposite
reaction.
Weight -CORRECT ANSWER-The gravitational force exerted on an object by the Earth (or by
whatever planet it happens to be on).
Normal Force -CORRECT ANSWER-The component of the contact force that is perpendicular
to the surface. (When an object is in contact with a surface, the surface exerts a contact
force on the object.)
Friction Force -CORRECT ANSWER-The component of the contact force that is parallel to the
surface. (When an object is in contact with a surface, the surface exerts a contact force on
the object).
Static Friction -CORRECT ANSWER-A type of friction that occurs when there is no relative
motion between the object and the surface (no sliding).
Kinetic Friction -CORRECT ANSWER-A type of friction that occurs when there is relative
motion (when the surface is sliding).
Coefficient of Friciton -CORRECT ANSWER-Represents the nature of surfaces.
Law of Conservation of Energy -CORRECT ANSWER-Energy can not just appear out of
nowhere nor can it disappear in a closed system; it must always take on another form.
Work -CORRECT ANSWER-The application of force over a distance and the resulting change
in energy of the system that the force is acted on.
Total Mechanical Energy -CORRECT ANSWER-The sum of an object's kinetic and potential
energies.