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motion
19 cards·by cj
frame of reference
is a system of objects that are not moving with respect to one another
relative motion
movement in a platform
distance
is the length of a path between two points
vector
is a quantity that has magnitude and direction
resultant vector
which is the vector sum of two or more vectors
free fall
the movement of an object toward earth solely
distance
starting point to its ending point
vector
is a quantity that has magnitude and direction
speed
the ratio of the distance an object moves to the amount of time the object moves
average speed
the entire duration of a trip
instantaneous speed
is the rate at which an object is moving at the giving time
slope
the slope of a line on a distance time graph is speed
velocity description of both speed and direction of motion
answer
acceleration
changes in speed in direction or changes in both acceleration is vector
free fall
the movement of an object toward earth solely because of gravity
constant acceleration
steady change in velocity
graphs of accelerated motion
the slope of a speed time graph is acceleration
linear graph
the displayed data from straight line parts
nonlinear graph
a curve connects the data points that are plotted