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Transcript

Thank you

Shamma Hamdan - 8i

Dhabya Hamdan - 8n

Rana Safwan - 8i

Result

Conclusion

The electric current flowed from the positive terminal of the battery, through the negative terminal, into the magnet. The current then traveled through the end of the wire, and back to the battery's positive terminal. This movement of electric current is what caused the wire to spin

The more magnets we use the faster the wire spins. This is because there is a wider field of magnetism affecting the wire

The experiment proved our hypothesis. The battery, copper wire, and magnets formed an electrical circuit. The magnetic field and the electric current made by the magnet and battery are what caused the wire to rotate.

Variables

  • Independent Variable: number of magnets
  • Dependent Variable: speed of wire
  • Control Variable: length and thickness of the wire

Homopolar Motor

Note that

Experiment

You can shape the wire in many different ways:

  • Spiral
  • Square
  • Heart, etc.
  • Bend the wire to form any shape
  • Connect one end of the wire to the positive end of the battery and the other end to the magnet
  • Let go of the wire and watch it spin
  • Repeat the experiment using more magnets this time

Materials

Objective

  • copper wire
  • magnets
  • battery

To try and make an electric motor

Hypothesis

If we make the motor correctly, the copper wire will spin on top of the battery. The more we add magnets, the faster the motor will spin.

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