# Forces in Equilibrium

By Samantha Hughes (CHS Class of 2012)

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 ACROSS 1. A quantity that can be completely described by a single value. 3. ____ force. A perpendicular force. 5. A force that resists the motion of objects. 9. Perpendicular vectors. 12. The object is this when the net force on an object is zero. 13. ____ constant. The relationship between the forces exerted by a spring and its change in length. 14. ____ friction. Exists when forces are acting to cause an object to move but friction is keeping the object from moving. 15. Spin. 16. ____body diagram. A simple diagram showing only the forces acting on a body. DOWN 2. A fluid used to reduce friction. 4. ____ of rotation. The line about which an object turns. 6. A quantity that includes both magnitude and direction. 7. ____'s law. States that the force exerted by a spring is proportional to its change in length. 8. The total of all the vectors. 10. A single value (without direction). 11. ____ friction. Present when two objects or surfaces slide across each other.