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- 1. Multiple Choice
The source of all magnetism ismoving electric chargesferromagnetic materialstiny domains of aligned atomstiny pieces of iron - 2. Multiple ChoiceMoving electric charges will interact withan electric fielda magnetic fieldboth A and Bnone of the above
- 3. Multiple ChoiceAn iron rod becomes magnetic whenpositive charges line up on one side and negative charges on the other sidepositive ions gather at one end and negative ions at the other endits electrons stop moving and point in the same directionthe net spins of its electrons point in the same direction
- 4. Multiple ChoiceSurrounding every moving electron isan electric fielda magnetic fieldan electric and magnetic fieldnone of the above
- 5. Multiple ChoiceMagnetism is produced by the motion of electrons as theymove around the nucleusspin on their axesboth A and Bneither A or B
- 6. Multiple ChoiceIf the north pole of one magnet is brought near the south pole of another magnet, the poles willrepelattractnot interactHow am I supposed to know that!
- 7. Multiple ChoiceIf you break a bar magnet in half, each halfbecomes a bar magnet with two polesbecomes unmagnetizedcontains one magnetic polesays 'hey man, what did I ever do to you?!'
- 8. Multiple ChoiceIf you put a small compass in a magnetic field, the compass willswing randomlyline up in a direction parallel to the magnetic field linesline up in a direction perpendicular to the magnetic field linesseek electrical charge concentrations
- 9. Multiple ChoiceMagnetic field strength isstrongest close to a magnetconstant everywherestrongest far from a magnet
- 10. Multiple ChoiceMagnetic fields are produced bymoving particles on earthcharges at restmoving particlesmoving charged particles
- 11. Multiple ChoiceMagnetic domains areregions that may or may not be magnetized.clusters of atoms randomly alignedregions of atoms magnetically alignedblocks of material
- 12. Multiple ChoicePermanent magnets can be made byplacing a piece of iron near a strong electromagnetplacing a piece of iron in a strong magnetic fieldstroking material containing iron with a magnetall of the above
- 13. Multiple ChoiceThe reason a magnet can attract an unmagnetized nail is thatnails really are magnetized (fooled you suckerz!)nails become permanently magnetized in a magnetic fieldnails become temporarily magnetized in a magnetic fielda magnet can attract any metal object
- 14. Multiple ChoiceWhen current passes through a wire, a magnetic field is created around the wire only if thewire is absolutely straightwire is in a curved loopcurrent comes from a battera magnetic field is always present around a current carrying wire
- 15. Multiple ChoiceIn order to make an electromagnet, you need abattery, nail, and magnetbattery, wire, and nailmagnet, nail, and wireall of the above
- 16. Multiple ChoiceEarth's magnetic field is most likely due tomillions of small magnets buried in Eartha magnetized solid inner core of Earthconvection currents in the molten part of Earth's interiorrotation of Earth acting on all of Earth's electrons
- 17. Multiple ChoiceThe discrepancy between the orientation of a compass and true north is known as theradioactive effect (hulkify!)magnetic declinationmagnetic effectmagnetic discrepancy
- 18. Multiple ChoiceThe force on an electron moving in a magnetic field will be the largest when its directionis at an angle other than 90 degrees to the magnetic field directionis perpendicular to the magnetic fieldis the same as the magnetic fieldis exatly opposite to the magnetic field (180 degrees)
- 19. Multiple ChoiceMagnetic field lines surrounding a magnet are conventionally drawnfrom south to northfrom north to southeither wayWho knows?!
- 20. Multiple ChoiceMagnetic field lines inside of a magnet are conventionally drawnfrom north to southfrom south to northeither wayMAGNETO WINS ALL!!
- 21. Multiple ChoiceMagnetic poles are similar to electric charges in that they both can repel and attract one another.truefalse
- 22. Multiple ChoiceBecause magnetism is slightly different from electrostatics, magnetic fields do not exist.truefalse
- 23. Multiple ChoiceJust as it is easy to separate electric charges, it is relatively easy to isolate a magnet’s poles.truefalsemaybe...?
- 24. Multiple ChoiceA magnetic field is produced by the motion of charged particles.truefalse
- 25. Multiple ChoiceSpinning electrons themselves are small magnets.truefalse
- 26. Multiple ChoiceThere is a magnetic field around a current-carrying wire.truefalsemaybe...?
- 27. Multiple ChoiceA neutron that moves at right angles to a magnetic field experiences a force.truefalse
- 28. Multiple ChoiceThe magnetic pole in the Northern Hemisphere is located at the geographic North Pole.truefalse
- 29. Multiple ChoiceWhich magnetic pole is located in the northern hemisphereMagnetic North PoleMagnetic South Pole
- 30. Multiple ChoiceA current-carrying wire experiences a force when the wire is perpendicular to a magnetic field.truefalse
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