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Foreman/Stapp - 8

Changes in Force and Motion - 6.8BCD

Resting Position Refers to an object remaining in the same spot relative to another object.
Motion The change in an object's position with respect to time and in comparison with the position of other objects used as reference points.
Direction A straight path that an object can move along.
Speed The rate of change of position (or distance traveled) with respect to time; units in which speed is measured are expressed as distance per time (example: meters per second).
Distance-Time Graph This type of graph illustrates changes in motion. Time is graphed on the x-axis and distance is graphed on the y-axis.
Line Graph A graph in which the data are represented by points connected by one or more lines.
X-Axis The horizontal line with labels on a coordinate grid; time is represented in the x-axis.
Y-Axis The vertical line with labels on a coordinate grid; distance is represented on the y-axis.
Average Speed Average speed is calculated by dividing the total distance an object traveled by the total time it took the object to travel the distance (s = d/t). Speed describes the rate of movement.
Force A push or pull that can change the motion of an object, measured with a spring scale in Newton (N) units.
Balanced Forces Separate forces on an object that combined do not change the movement of the object.
Unbalanced Forces When a force is pushing on another force with either more power or less power than the other.
Potential Energy Energy that is stored in a system or object.
Kinetic Energy Energy of motion.
Position Where something is located.
Distance Amount of space between two objects, points, lines, etc.
Change To make different in some way; alter.
Motion Act or process of changing position or place.
Time The measured period over which an action takes place.
Measurements A collection of quantitative data.