Mechanics terms

1234567891011121314151617181920
Across
  1. 4. a number greater than or equal to zero which measures the effect of friction between an object and a surface.
  2. 7. a simplification of a real-life situation used in a model.
  3. 9. a body which is at rest but on the point of moving.
  4. 11. an object that cannot be stretched.
  5. 14. the size of a vector.
  6. 15. the rate of change of an object's velocity with respect to time.
  7. 16. the force in a compressed rod.
  8. 18. a resistive force due to the roughness of a surface.
  9. 20. the turning effect a force has about a pivot.
Down
  1. 1. a wheel over which a string passes.
  2. 2. an influence that can change the motion of a body.
  3. 3. the study of the motion of objects.
  4. 5. a body which is modelled as having no mass.
  5. 6. a body which moves only under the influence of gravity.
  6. 8. a body that does not bend.
  7. 10. a mathematical approximation of a real-life situation.
  8. 12. reaction force from the surface acting on an object.
  9. 13. a surface where there is no friction.
  10. 17. a body whose mass is unevenly distributed.
  11. 19. a long, thin, straight, rigid body.