physics common mistakes

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Last updated 8:26 AM on 4/28/25
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5 Terms

1
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velocity/ time graphs

gradient = acceleration

area under graph = distance

2
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if there is current in rod

  • magnetic field around rod

  • magnetic fields interact and produce force

3
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why a wire would experience force when there is current in circuit

wire magnetic field interacts with magnetic field of magnets

4
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in dc electric motor:

when the switch is closed the coil spins…

  • current in wire

  • wire magnetic field interacts with magnet magnetic field

  • force on wire

  • current reverses every half turn

5
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investigate shape of magnetic field pattern of bar magnet

  • place magnet under paper

  • sprinkle iron filings over

  • tap paper to reveal pattern