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Motion and Forces

Unit 1 lessons 1-4

TermDefinition
Position Describes location of an object
Reference Point A location to which you compare other locations
Motion Change in position over time
Speed Measure of how far something moves in a given amount of time
Vector Quantity that has both size and direction
Velocity speed in a specific direction
Acceleration rate at which velocity changes
Centripetal acceleration Acceleration in circular motion
Force Simply a push or pull
Inertia Tendency of all objects to resist a change in motion
Net force Combination of all the forces acting on an object
Gravity A force of attraction between objects due to their mass
Free Fall When gravity is pulling down and no other forces are acting on it
Orbit When the object travels around another object in space
Created by: 18nbeffa1122
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