Force and Motion

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Across
  1. 3. Speed in a given direction.
  2. 4. The rate at which work is done (Power = Work ÷ Time).
  3. 7. The straight-line distance and direction from the starting point to the ending point.
  4. 9. A force that opposes motion between two surfaces that are touching.
  5. 13. The total of kinetic and potential energy in a system.
  6. 14. The force of gravity on an object (measured in newtons).
  7. 15. Plane A flat, sloped surface that reduces the amount of force needed to lift an object.
  8. 17. The energy of motion.
  9. 19. The fixed point around which a lever rotates.
  10. 20. The distance an object travels per unit of time.
  11. 21. The ability to do work or cause change.
  12. 22. Force applied over a distance (Work = Force × Distance).
  13. 23. An inclined plane wrapped around a central shaft.
  14. 24. A measure of how well a machine converts input work into output work.
  15. 26. A device that changes the direction or magnitude of a force.
Down
  1. 1. The ratio of output force to input force in a machine.
  2. 2. A simple machine consisting of a rigid bar that pivots around a fulcrum.
  3. 4. A wheel with a rope or chain that changes the direction of a force.
  4. 5. Stored energy due to position or condition.
  5. 6. A push or pull on an object.
  6. 8. The product of an object’s mass and velocity.
  7. 10. Two inclined planes joined back to back; used to split or cut objects.
  8. 11. The rate of change of velocity over time.
  9. 12. – A simple machine made of a wheel attached to a central axle.
  10. 16. The force of attraction between two masses.
  11. 18. The total force acting on an object after all forces are combined.
  12. 25. The tendency of an object to resist changes in its motion.
  13. 27. The amount of matter in an object (measured in kilograms or grams).