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Across 3. A push or a pull 4. A force caused by the earth's gravity 6. The rotational counterpart to force 7. How a vector is represented on paper 8. Method for determining the resultant force acting on an object 9. The English unit for force 11. Describes the applied forces when the net force is not zero 14. The measure of an objects inertia 16. The state of the object when the net force acting on it is zero 17. The sum of all forces acting on an object 18. A diagram that represents the forces acting on an object 19. Prime mover in a mechanical system 20. Prime mover in a fluid system 21. Fully described by only the magnitude

Down 1. Prime mover in a thermal system 2. Has both magnitude and direction 5. The property of an object to resist a change in motion 10. Forces that are equal in magnitude and opposite ind direction 12. The SI unit for force 13. Torque combines a force and this 15. Prime mover in an electrical system