Science 8 - Mechanics Crossword

123456789101112131415161718192021222324
Across
  1. 4. A flat bar or plank that can move about a fixed point.
  2. 7. When a machine sends, passes on, or spreads energy from one place to another
  3. 8. The __________ gear is gear that is in front of a gear train. It is attached to a handle or motor.
  4. 10. The ___________ screw is a mechanical device made of a long tube with a large screw inside.
  5. 12. The power or strength of the energy that a machine uses or produces
  6. 13. The __________ gear comes after the driver gear.
  7. 15. The entire, complex machine, all parts working together.
  8. 18. There are _______ different classes of levers.
  9. 20. The individual parts (usually simple machines) that make up subsystems.
  10. 23. Made of a wire, rope or cable that moves along a groove in a wheel.
Down
  1. 1. The pivot
  2. 2. The _______ Wheel had a long rope with buckets tied around it that would collect water from a source and lift it up.
  3. 3. An object that looks like a wheel with teeth around the outside edge.
  4. 5. Parts joined together to make a machine or part of a machine
  5. 6. The thin edge of the ________ is put in position of an object and then the object begins to spread apart as the wider part of it gets pushed into it.
  6. 9. The force that is put into a lever for it to do work.
  7. 11. A part of the whole machine that includes certain parts working together to do a certain job.
  8. 14. A cylindrical shape that had a long groove cut in a spiral running around and around it.
  9. 16. ____________ machines are tools that use energy but make work easier.
  10. 17. A ____________ and axel is a simple machine that helps cars drive and allows us to shut off heavy duty valves with little force.
  11. 18. A gear _______ is when two or more gears are used together.
  12. 19. ___________ machines are made up of two or more interconnected simple machines working together.
  13. 21. Something that humans have created or built to help them do work and make jobs easier
  14. 22. Makes it easier to move objects by sliding or rolling them up or down instead of lifting them straight up or down.
  15. 24. The object that you do work on with a lever.