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A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects. When the interaction ceases, the two objects no longer experience the force. Forces only exist as a result of an interaction.
Website: http://www.physicsclassroom.com/class/newtlaws/Lesson-2/The-Meaning-of-Force

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Speed is distance traveled per unit of time. It is how fast an object is moving. Speed is the scalar quantity that is the magnitude of the velocity vector. It doesn't have a direction. A higher speed means an object is moving faster. A lower speed means it is moving slower. If it isn't moving at all, it has zero speed.
Website: https://www.thoughtco.com/speed-2699009

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the rate of change of velocity per unit of time.
https://www.google.com/search?q=acceleration&rlz=1CADEAC_enUS742US742&oq=acce&aqs=chrome.3.69i57j69i60j69i59l2j69i61j69i60.3792j0j9&sourceid=chrome&ie=UTF-8&safe=active

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the action or process of moving or being moved.
https://www.google.com/search?q=motion&rlz=1CADEAC_enUS742US742&oq=motion&aqs=chrome..69i57j69i60l3j0l2.1991j0j9&sourceid=chrome&ie=UTF-8&safe=active

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Point of reference is the intentional use of one thing to indicate something else. It may refer to: Reference point (General usage) Frame of reference (Physics usage)
Website: https://en.wikipedia.org/wiki/Point_of_reference

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Balance forces are two forces acting in opposite directions on an object, and equal in size. Anytime there is a balanced force on an abject, the object stays still or continues moving continues to move at the same speed and in the same direction.
Website: http://eschooltoday.com/science/forces/balanced-forces.html

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In physics, the Net force is the overall force acting on an object. To calculate net force, the body is isolated and interactions with the environment or other constraints are represented as forces and torques in a free-body diagram.
Website: https://en.wikipedia.org/wiki/Net_force

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Average speed can be viewed as the rate of change in distance with respect to time. A car traveling at an average speed of 25 miles per hour covers an average distance of 25 miles every hour.
Website: http://study.com/article_directory/College_and_University_Overviews_(by_State).html

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a force that keeps an object at rest. It must be overcome to start moving the object. Once an object is in motion, it experiences kinetic friction. If a small amount of force is applied to an object, the static friction has an equal magnitude in the opposite direction.
Website: www.softschools.com/formulas/physics/static_friction_formula/30/

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a force that acts between moving surfaces. An object that is being moved over a surface will experience a force in the opposite direction as its movement. The magnitude of the force depends on the coefficient of kinetic friction between the two kinds of material.

Website: www.softschools.com/formulas/physics/kinetic_friction_formula/92/

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The force that works against an object as it slides along the surface of another object or moves through a liquid or gas.
Website: http://dictionary.cambridge.org/us/dictionary/english/friction