1) an object, like a wheel, that has a groove with a rope or cable running through it a) push b) screw c) ramp d) pulley 2) tells how a net force changes an object's motion a) Newton's 3rd Law b) Newton's 2nd Law c) Newton's 1st Law d) Newton's 4th Law 3) motion won't change unless an unequal force acts on it a) Newton's 3rd Law b) Newton's 1st Law c) Newton's 2nd Law d) Newton's 4th Law 4) A machine that uses only one movement a) simple machine b) effort machine c) hand-operated machine d) compound machine 5) resist a change in motion a) inertia b) gravity c) velocity d) friction 6) push or pull a) gravity b) velocity c) force d) mass 7) a force between two surfaces that resist motion a) friction b) tension c) contact d) gravity 8) when one object exerts a force on a second object, the second object exerts an equal force in the opposite direction a) Newton's 2nd Law b) Newton's 3rd Law c) Newton's 1st Law d) Newton's 4th Law 9) Is done when a force causes an object to move in the same direction as the force that is applied a) speed b) work c) pully d) velocity 10) A combination of simple machines a) complicated machine b) wheel and axle c) effort machine d) compound machine 11) Is a rod/plank that pivots about a fixed point a) wedge b) pulley c) screw d) lever

Science Definitions - Newton's Laws

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