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1st Quarter Review

Vocabulary Chapter 1-4

TermDefinition
Reference Point The starting point you choose to describe the location, or position, of an object.
Position An object's distance and direction from a reference point.
Motion The process of changing position.
Displacement Th difference between the initial position and the final position of an object.
Speed The measure of distance of an object per unit of time.
Constant Speed Rate of change of position in which the same distance is traveled per second.
Instantaneous Speed Speed at a specific distance in time.
Velocity Speed and direction of a moving object
Acceleration The measure of the change n velocity during a period of time.
Net Force The combination of all the forces acting on an object.
Balanced Force Forces acting on an object that combine and form a net force of zero.
Unbalanced Force Forces acting on an object that combine and form a net force that is not zero.
Inertia The tendency of an object to resist a change in its motion.
Circular Motion Any motion in which an object is moving along a curved path.
Centripetal Force force that acts perpendicular to the direction of motion, toward the center of the curve.
Efficiency The ratio of output work to input work.
Sound Wave A longitudinal wave that travels through matter.
Pitch The perception of how high or low a sound seems.
Echo A reflected sound wave.
Created by: black_hole0
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