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Design and technology
Cams: automata

Starter quiz

  • What is a hacksaw used for?
    • measuring
    • strengthening
    • holding
    • cutting  ✓
  • Which of these is true about softwood?
    • it grows slowly
    • it is easy to cut and shape  ✓
    • it has a tight grain
    • it is more expensive
  • Which type of cam causes the follower to make a sudden drop?
    • ellipse
      ellipse
    • pear
      pear
    • eccentric
      eccentric
    • snail
      snail  ✓
  • Why would a triangle be added to a corner joint?
    • to strengthen it  ✓
    • to decorate it
    • to measure it
    • to join it
  • Which of these is not a safe way to use a hacksaw?
    • Keep fingers away from the blade.
    • Hold the blade up high when walking.  ✓
    • Point the blade down to the floor when walking.
    • Use a bench hook to support wood.
    • Hold the saw by the handle.
  • Match the parts of an automaton cam mechanism to their function.
    • cam disc
      ⇔
      affects the movement of the follower ✓
    • slide
      ⇔
      supports the follower ✓
    • axle
      ⇔
      rotates the cam discs ✓
    • follower
      ⇔
      moves an animated element ✓
    • crank
      ⇔
      turns the axle ✓
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