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Motion
Flashcards to prepare for test on Motion, Speed and Acceleration
10
Science
8th Grade
01/06/2014

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Term
Speed
Definition
The rate at which something is moving. The distance moved in one unit of time, calculated using the formula speed equals distance over time.
Term
Acceleration
Definition
The rate at which velocity changes. Acceleration can describe the change in speed or the change in direction of a moving object.
Term
Meter
Definition
The base unit of measuring distance using the metric (or SI) system of measurement. Abbreviated by the lowercase letter m.
Term
Deceleration
Definition
Decreasing speed (slowing down) also known as negative acceleration.
Term
Speed graph
Definition
A line graph using time as the manipulated variable (on the x axis) and distance as the responding variable (on the y axis) - may also be called a distance-vs.-time graph.
Term
Acceleration graph
Definition
A line graph using time as the manipulated variable (on the x axis) and speed as the responding variable (on the y axis) - may also be called a speed - vs. - time graph.
Term
Constant
Definition
Unchanging, staying the same for a given period of time. A constant speed is shown as a straight line on a speed graph and a horizontal line on an acceleration graph.
Term
Motion
Definition
The change in distance between an object and a reference point.
Term
Reference point
Definition
The location used to determine if an object is moving. This is the location that you are looking from to determine if there is a change in distance.
Term
Velocity
Definition
A description of an objects speed and direction.
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