Chapter 2 Flashcards
rate of change in velocity; change in velocity overtime
acceleration
acceleration of object due as a result of gravity
acceleration due to gravity
change in velocity divided by the time over which it changes
average acceleration
distance traveled divided by time during which motion occurs
average speed
displacement divided by time over which displacement occurs
Average velocity
Acceleration in the direction opposite to velocity; acceleration that results in a decrease in velocity
Deceleration
Variable that is being measured; usually plotted along the y-axis
Dependent variable
Change in position of an object
Displacement
Magnitude of displacement between two positions
Distance
Total length of the path traveled between two positions
Distance traveled
Difference between the ending time and beginning time
Elapsed time
State of movement that results from gravitational force only
Free-fall
Variable that the dependent variable is measured with respect to; usually plotted along the x-axis
Independent variable
Acceleration at a specific point in time
Instantaneous acceleration
Magnitude of the instantaneous velocity
Instantaneous speed
Velocity at a specific instant, or the average velocity over an infinitesimal time interval
Instantaneous velocity
Study of motion without considering its causes
Kinematics
Location of an object at a particular time
Position
Simplified description that contains only those elements necessary to describe the physics of a physical situation
Model
Quantity that is described by magnitude, but not direction
Scalar
Difference in y-value (the rise) divided by the difference in x-value (the run) of two points of a straight line
Slope
Change, or the interval over which change occurs
Time
Quantity that is described by both magnitude and direction
Vector
Y-value when x=0, or when the graph crosses the y-axis
Y-intercept