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Magnetite: Quiz


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More interesting facts on Magnetite

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Question 1: Crystals of magnetite have been found in some bacteria (e.g., Magnetospirillum magnetotacticum) and in the brains of ________, of termites, fish, some birds (e.g., the pigeon) and humans.
CattleHoney beeBeeEsox

Question 2: Lodestone was used as an early form of ________.
Global Positioning SystemRudderCompassInertial navigation system

Question 3: Deposits are also found in Norway, Germany, Italy, Switzerland, South Africa, India, Mexico, and in Oregon, New Jersey, Pennsylvania, North Carolina, Virginia, New Mexico, Utah, and ________ in the United States.

Question 4: Small grains of magnetite occur in almost all igneous rocks and ________.
MetamorphismHornfelsGranuliteMetamorphic rock

Question 5: Magnetite is commonly used as the primary material in jewelry worn by adherents of the controversial[5] hypothesis of ________.
Alternative medicineReikiCommittee for Skeptical InquiryMagnet therapy

Question 6: [3] These crystals are thought to be involved in magnetoreception, the ability to sense the polarity or the inclination of the Earth's ________, and to be involved in navigation.
Magnetic fieldMagnetic momentMagnetismMaxwell's equations

Question 7: [1] Naturally magnetized pieces of magnetite, called lodestone, will attract small pieces of iron, and this was how ancient man first discovered the property of ________.
Magnetic momentMagnetismElectromagnetismMagnetic field

Question 8: Magnetite is a valuable source of ________.
Iron oreSteelOxygenAluminium

Question 9: Magnetite is the most magnetic of all the naturally occurring minerals on ________.

Question 10: Magnetite is a ferrimagnetic ________ with chemical formula Fe3O4, one of several iron oxides and a member of the spinel group.


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