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Motion
Chapter 11
15
Physics
10th Grade
11/10/2015

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Term
Frame of Reference
Definition
a system of objects that are not moving with respect to one another
Term
Relative Motion
Definition
movement in relation to frame of reference
Term
Distance
Definition
the length of the path between two points
Term
Displacement
Definition
the direction from the starting point and the length of a straight line from the starting point to the ending point
Term
Vector
Definition
a quantity that has magnitude and direction
Term
Resultant Vector
Definition
Points directly from the starting point to the ending point
Term
Speed
Definition
the ratio of the distance an object moves to the amount of time the object moves
Term
Average Speed
Definition
the total distance traveled divided by the time it takes to travel that distance
Term
Instantaneous Speed
Definition
the rate at which an object is moving at a given moment
Term
Velocity
Definition
a description of both speed and direction of motion
Term
Acceleration
Definition
the rate at which velocity changes
Term
Free Fall
Definition
the movement of an object towards Earth sole because of gravity
Term
Constant Velocity
Definition
when you're staying at the same speed
Term
Linear Graph
Definition
a graph that has a straight line
Term
Non-Linear Graph
Definition
a curve connects the data points that are plotted
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