# Shared Flashcard Set

## Details

Chapter 2 part 1 vocab
vocab quiz
14
Physics
10/07/2009

Term
 Mechanics
Definition
 that branch of physics that deals with forces and their effects in producing a changing motion
Term
 Distance
Definition
 the total length of the path that an object travels; scalar quantity
Term
 Displacement
Definition
 the change in position of an object described by the vector that begins at the initial position of the object and ends at its final position
Term
 Meter
Definition
 the fundamental SI unit of length
Term
 Speed
Definition
 the distance that an object moves in a unit of time; a scalar quantity
Term
 Second
Definition
 the fundamental SI unit of time
Term
 Uniform motion
Definition
 the motion of an object moving at constant speed
Term
 Velocity
Definition
 the time rate of change of an object's displacement; a vector quantity
Term
 Linear motion
Definition
 an object's change of position along a straight line
Term
 Tangent
Definition
 a line on a graph which passes through a point and has a slope equal to the slope of the curve at that point
Term
 Instantaneous velocity
Definition
 the velocity of an object at any particular instant in time; a vector qty.
Term
 Vacuum
Definition
 a region of empty space
Term
 Gravity
Definition
 the force between the mass of the earth and the mass of any object in the vicinity of Earth; vector qty.
Term
 Free fall
Definition
 the ideal falling motion of an object acted upon only by the force of gravity
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