Physics 10 Mechanics

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