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PHYS 101-1 > Nature of Magnetism > Flashcards

Nature of Magnetism Flashcards

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1
Q

Magnetism

A

permits it to attract magnetic substances

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2
Q

Megnetic Field

A

zone of influence around a magnet, flows from north to south

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3
Q

Permeabilty

A

ease with which material can be attracted

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4
Q

Magnetic Retentivity

A

ability of material to stay magnetized

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5
Q

Natural Magnets

A

earth is the largest, produced by nature

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6
Q

Artificial Permanent Magnets

A

commonly shape like a horseshoe or a bar, alnico

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7
Q

Electromagnets

A

temporary magnets, produced by electric current

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8
Q

Laws of Magnetism

A

magnetic poles, repulsion-attraction, the inverse square law

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9
Q

Magnetic Poles

A

every magnet has 2 poles at each end, north and south pole

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10
Q

Repulsion-Attraction

A

repulsion-like magnetic poles repel each other

attraction-unlike magnetic poles attract each other

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11
Q

The Inverse Square Law

A

the closer the magnets are the stronger they are, the farther they are the weaker

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12
Q

Magnetism Phenomena

A

Associated Phenomena

breaking magnets, heating or hammering, stroking,& jarring

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13
Q

Magnetic Dipole

A

small magnets created by the electron orbit

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14
Q

Non-magnetic Material

A

equal electrons, cancel magnetic effects

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15
Q

Non-magnetized Magentic Material

A

wannabe’s, can be’c

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16
Q

Ferrormagnetic Materials

A

simply magnetic, highly permeable

17
Q

Paramagnetic Materials

A

low permeabiliy, weak attraction to magnetic fields

18
Q

Nonmagnetic Materials

A

cannot be magnetized

19
Q

Diamagnetic Materials

A

weakly repelled, annot be artifically magnetixed, no magnet attraction

20
Q

Electromagnetism

A

relationship between electricity and magnets

21
Q

Electromagnetic Induction

A

line of force around the magnet

22
Q

Solenoid

A

current carrying coiled conductor

23
Q

Electromagnetic Induction Process

A

inducing an EMF into a conductor as it cuts magnetic lines of force

24
Q

Faraday’s Law

A

speed of motion, strength of the magnetic field, angle, & number of turns

PHYS 101-1 (5 decks)

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