Push or a pull exerted on an object - force, SI unit for force - newton, Equal forces acting on an object in opposite directions - balanced forces, Net force that doesn’t equal zero, which changes an object's motion - unbalanced forces, Overall force of an object when all the forces acting on an object are added together - net force, A flat surface that slopes - inclined plane, A machine that makes work easier (ex. Pulley, screw, wedge, wheel and axle, lever) - simple machine, Occurs when force is applied to an object and the object moves a distance - work,

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