4-ELM-03

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  • buiding electric mototrs

Specification References

  • 6.11 appreciate that there is a force on a charged particle when it moves in a magnetic field as long as its motion is not parallel to the field
  • 6.12 recall that a force is exerted on a current-carrying wire in a magnetic field, and how this effect is applied in simple d.c.electric motors and loudspeakers
  • 6.13 use the left hand rule to predict the direction of the resulting force when a wire carries a current perpendicular to a magnetic field
  • 6.14 recall that the force on a current-carrying conductor in a magnetic field increases with the strength of the field and with the current

Starter

  • recall that a current-carrying wire placed in a magnetic field, experiences an elecromagnetic force on it
  • the direction of the electromagnetic force acting is given by the Fleming's left hand rule

Main Body of Lesson

  • present them a model of the small electric motor they are about to build
  • show them what you provide them with
  • use the question sheet(Science Shared area)

Plenary

Homework

  • Complete Physics texbook - page 211 Q 1-3, page 213 Q1-3

Additional Information

Resources Required

  • building electric motors kits

Textbook References

  • None

Website References

  • None

Skills Addressed

Safety/Hazards

Notes

  • None