AS Level Definition [Mechanics]

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Across
  1. 4. the product of mass and velocity
  2. 8. Newton's __________ Law states when object X exerts a force on object Y, object Y exerts a force of the same type that is equal in magnitude and opposite in direction on object X.
  3. 11. ___________ error is the type of error which causes readings to scatter about the true value
  4. 12. the degree of agreement between the result of a measurement and the true value of the quantity
  5. 13. the force of gravitational attraction on a body
  6. 14. Total length covered irrespective of the direction of motion
  7. 15. the rate of change of momentum
  8. 18. ________'s Law states within the limit of proportionality, the extension produced in a material is directly proportional to the force/load applied
  9. 21. A quantity that has both magnitude and direction. It can be described by an arrow whose length represents the magnitude of the vector and the arrow-head represents the direction of the vector.
  10. 22. The ratio of (useful) output energy of a machine to the input energy
  11. 24. the mass per unit volume
  12. 25. Principle of ________ states for a body to be in equilibrium, the sum of all the anticlockwise moments about any point must be equal to the sum of all the clockwise moments about that same point
  13. 27. _________ collision occurs when only momentum is conserved, total kinetic energy is not conserved
  14. 28. Distance travelled per unit time
  15. 29. Distance moved in a certain direction from start to end point
  16. 31. the degree of agreement (scatter, spread) of repeated measurements of the same quantity
Down
  1. 1. An upward force exerted by a fluid on a submerged or floating object; arises because of the difference in pressure between the upper and lower surfaces of the object
  2. 2. the product of the force and displacement (of its point of application) in the direction of the force
  3. 3. The _______ of a couple is the product of one of the forces of the couple and the perpendicular distance between the lines of action of the forces
  4. 5. ________ collision occurs when both momentum & kinetic energy of the system are conserved
  5. 6. Centre of _________ is the point in space through which the entire weight of the object may be considered to act
  6. 7. the work done per unit time
  7. 9. A quantity that has a magnitude only. It is completely described by a certain number and a unit.
  8. 10. __________ error is the type of error which causes readings to deviate in one direction from the true value
  9. 16. The product of the force and the perpendicular distance of its line of action to the pivot
  10. 17. Newton's _________ Law states the rate of change of momentum of a body is directly proportional to the net force acting on the body, and the momentum change takes place in the direction of the net force.
  11. 19. the force per unit area
  12. 20. the rate of change of velocity
  13. 23. the rate of change of displacement
  14. 26. a measure of the amount of matter in a body, & is the property of a body which resists change in motion.
  15. 27. the product of the force and the time during which the force acts
  16. 30. Newton's ______ Law states every body continues in a state of rest or uniform motion in a straight line unless a net (external) force acts on it.