Physics 10 Mechanics

12345678910111213141516171819202122
Across
  1. 1. is done when a force moves an object in the direction of force. scalar
  2. 7. fraction of energy which is usefully transferred
  3. 9. the force of gravity on a body
  4. 10. collisions the total ke is decreased ; perfectly inelastic if they stick together
  5. 11. the ability to do work
  6. 12. energy energy an object has as a result of its motion
  7. 13. change in momentum. a vector
  8. 15. the value of a quantity measured at an instant in time, as opposed to an average quantity measured over a period of time
  9. 18. one newton is the force which will accelerate
  10. 19. the rate of doing work. watts
  11. 20. reaction two objects contact each other exert a force on each other which is perpendicular to the surface
  12. 21. and distance the scalar versions of velocity and displacement
  13. 22. a force produced in a body. the opposite is compression
Down
  1. 2. My teacher calls himself
  2. 3. the distance traveled in a particular direction from a specified origin
  3. 4. the rate of change of displacement with time. a vector, units m/s
  4. 5. the rate of change of velocity with time a vector, units m/s/s
  5. 6. upward force on the wing of an aircraft due to the air flowing around it
  6. 8. the force which opposes motion when one surface moves over another. it is caused by the roughness of the surfaces
  7. 14. the property of matter which makes it resist acceleration
  8. 16. upward force on a body which is immersed in a flud (liquid or gas)
  9. 17. an unbalanced force causes an acceleration