1140 Definitons Flashcards

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1
Q

Particle theory

A

Isaac Newton

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2
Q

5.80 x10^-7 m

A

wavelength of yellow light

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3
Q

visible spectrum

A

includes only light waves

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4
Q

electromagnetic spectrum

A

includes ultraviolet waves, light waves, infrared waves, and others

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5
Q

observed the eclipse of Jupiter’s moon Io to determine the speed of light

A

Olaus Roemer

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6
Q

showed that light travels 10,000 times faster than Earth in its orbit

A

James Bradley

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7
Q

used a rotating toothed wheel to measure the speed of light

A

Armand Fizeau

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8
Q

used a rotating plane mirror to measure the speed of light

A

Jean Foucault

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9
Q

received a Nobel price in 1907 for studies of light

A

Albert Michelson

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10
Q

invented the vacuum bottle in 1892

A

James Dewar

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11
Q

waves arriving out of phase and cancelling each other out

A

destructive interference

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12
Q

waves arriving in phase and strengthening each other

A

constructive interference

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13
Q

a device that measures extremely small distances with interference of light

A

interferometer

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14
Q

invented the interferometer

A

Albert Michelson

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15
Q

light emitted at random and in all direction

A

scattered light

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16
Q

light vibrating in a single plane

A

polarization

17
Q

first to investigate static electricity

A

Thales of Miletus

18
Q

insulators

A

nonmetal poor conductors

19
Q

good conductors

A

silver, gold, copper

20
Q

neither a good conductor nor a good insulator

A

semiconductor

21
Q

formulated three laws of static electricity

A

Benjamin Franklin

22
Q

measured forces between charged bodies

A

Charles de Coulomb

23
Q

Good insulating materials

A

mica, porcelain, glass

24
Q

three ways an object can acquire a static electrical charge

A

friction, induction, direct contact

25
Q

Electric charge can neither be created nor destroyed

A

law of conservation of charge

26
Q

an object that can accept or supply electrons

A

ground

27
Q

a device that stores static charges

A

Leyden jar

28
Q

a positively charged conductor, a negatively charged conductor, and uncharged insulating material in between

A

capacitor

29
Q

ability to hold a charge

A

capacitance

30
Q

equal to one coulombs of charge for every volt of potential difference

A

one farad of capacitance

31
Q

a device that produces a static electrical charge

A

an electrostatic generator

32
Q

an electrostatic generator that is capable of building extrememely high electric potentials

A

Van de Graaff generator

33
Q

invented the first electrostatic generator

A

Otto van Guericke

34
Q

measures the electric potential of a charged body

A

electroscope

35
Q

invented the telegraph, the first invention with a useful purpose for electricity

A

Samuel F.B. Morse