IED 4.2

Edit Answers
123456789101112131415161718192021
Across
  1. 1. The amount of force between two surfaces moving relative to each other, also called kinetic friction.
  2. 3. A component used between moving parts and stationary parts for support and reduction of friction.
  3. 7. The adhesive friction of a body on a surface on which it moves.
  4. 8. The ratio between the frictional force and normal force between any two surfaces.
  5. 12. A value that represents the stiffness of a spring. The stiffer the spring, the higher the spring constant.
  6. 13. A spring in which the applied force needed to push, pull, or twist the spring is proportional to the displacement of the spring, as long as the spring doesn’t reach its elastic limit.
  7. 14. The cause of resistance to motion of any real wheel system or rolling object.
  8. 15. A measurement between the starting position and final position of an object regardless of the path followed.
  9. 16. A property of a material that allows it to be distorted and then return to its original shape.
  10. 17. The study of motion of a system without consideration of forces acting within the system.
  11. 18. A class of spring where the relationship between force and displacement changes along the length of the spring.
  12. 20. The force that something or someone exerts on an object.
  13. 21. the force exerted by a spring which is equal and opposite to the direction of the applied force. The spring force acts return the spring to its natural length.
Down
  1. 2. The length of a spring at rest.
  2. 4. A sleeve or liner that will reduce friction and wear inside of a hole.
  3. 5. The ratio between the frictional force and normal force between any two surfaces.
  4. 6. A class of spring that requires about the same force, regardless of the extension.
  5. 9. General agreement
  6. 10. A force that keeps an object at rest. This force of friction precisely balances the applied force while the object is stationary.
  7. 11. A substance (such as grease) capable of reducing friction, heat, and wear when introduced as a film between solid surfaces.
  8. 19. The ratio of useful energy output to the total energy input, or the percentage of work input that is converted to work output.