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    • #15410
      Profile photo of Andrew Normand

      This game can be used to explain the photoelectric effect. The work function is the amount of energy needed to remove the ball from the head; the rest of the energy is transformed into KE.

      Butt head game (£9.99 from Hawkin.com) or homemade Velcro equivalent, foam disc gun (£9.99 & £4.99) and an airzooka.

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