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Rms 5 Force and Moti

Rms 5 Force and Motion

force a push or pull exerted by one object on another,causing a change in motion
contact force a force that needs to come into contact with an object to affect it
non-contact force a force that does not need to come in contact with another object to affect it
inertia the tendancy of a moving object to keep moving in a straight line or of any object to resist a change in motion
speed how fast an object's position changes with time at any given moment(distance over time)
velocity speed in direction
acceleration a change in velocity with respect to time
balanced forces forces that cancel each other out when acting together on a single object
unbalanced forces forces that do not cancel each other out when acting together on a single object
action the force one object applies to another
reaction the force with which an object responds to an action
gravity the force of attraction between any two objects due to their mass
weight the force of gravity between the Earth and an object
work the use of force to move an object a certain distance
simple machine a machine with few moving parts, making it easier to do work
lever a simple machine made of a rigid bar and fixed pivot point, called the fulcrum
fulcrum the pivot point of a lever
effort arm the part of a lever that applies force to the resistance arm
resistance arm the part of a lever that applies force to the load the machine acts against
Created by: mrskarney