Physics

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The source of all electromagnetic waves is A) changes in atomic energy levels. B) vibrating ... Started by imanialler	3 Replies 358 Views	Jul 29, 2018 by TheNamesImani
Your friend says that any radio wave travels appreciably faster than any sound wave. A) agree ... Started by jessicacav	1 Replies 105 Views	Jul 29, 2018 by 234sdffa
A changing electric field induces a changing A) magnetic field. B) electromagnetic field. C) ... Started by Ebrown	1 Replies 622 Views	Jul 29, 2018 by LVPMS
Which of these electromagnetic waves have the shortest wavelength? A) radio waves B) infrared ... Started by lunatika	1 Replies 124 Views	Jul 29, 2018 by bbburns21
If the Sun were to disappear at this moment, we wouldn't know about it for A) 7 seconds, reflex ... Started by jon_i	3 Replies 64 Views	Jul 29, 2018 by kalskdjl1212
A main difference between a radio wave and a light wave is A) wavelength. B) frequency. C) both ... Started by Davideckstein7	1 Replies 97 Views	Jul 29, 2018 by lauravaras
Which of these electromagnetic waves have the longest wavelength? A) radio waves B) infrared ... Started by ereecah	1 Replies 91 Views	Jul 29, 2018 by mmpiza
If the color spectrum ranges from red to violet, then it ranges from A) low frequencies to high ... Started by javeds	1 Replies 56 Views	Jul 29, 2018 by wshriver
Which of the following cannot travel in a vacuum? A) a light wave B) a sound wave C) a radio ... Started by 123654777	3 Replies 59 Views	Jul 29, 2018 by Amiracle
A main difference between a radio wave and a sound wave is A) frequency. B) wavelength. C) ... Started by sammy	1 Replies 94 Views	Jul 29, 2018 by orangecrush
The fact that you can see stars in the nighttime sky is evidence that A) our atmosphere is ... Started by jman1234	1 Replies 72 Views	Jul 29, 2018 by ecox1012
What is the wavelength of an electromagnetic wave that has a frequency of 3 kilohertz? A) less ... Started by chandani	1 Replies 56 Views	Jul 29, 2018 by Li Jun
Compared to the photon that enters a pane of window glass, the photon that emerges is A) the same ... Started by hbsimmons88	3 Replies 73 Views	Jul 29, 2018 by gstein359
If an electron vibrates up and down 1000 times each second, it generates an electromagnetic wave ... Started by brutforce	1 Replies 50 Views	Jul 29, 2018 by Chocorrol77
The speed of light in the void between molecules in glass is A) more than its speed in a vacuum. ... Started by daltonest1984	1 Replies 135 Views	Jul 29, 2018 by catron30
The natural frequency of the atoms in glass is in the A) infrared part of the spectrum. B) ... Started by ETearle	1 Replies 61 Views	Jul 29, 2018 by bigcheese9
Glass is transparent to wave frequencies that A) match its natural frequencies. B) are below its ... Started by NClaborn	3 Replies 161 Views	Jul 29, 2018 by aprice35067
When ultraviolet light is incident upon glass, atoms in the glass A) are forced into vibration. ... Started by nmorano1	1 Replies 296 Views	Jul 29, 2018 by lou
Materials generally become warmer when light is A) absorbed by them. B) reflected by them. C) ... Started by amal	1 Replies 120 Views	Jul 29, 2018 by akudia
A solar eclipse occurs when the A) Sun passes into Earth's shadow. B) Moon passes into Earth's ... Started by vinney12	1 Replies 53 Views	Jul 29, 2018 by momo1250
A total shadow is called A) an umbra, and a partial shadow a penumbra. B) a penumbra, and a ... Started by shofmannx20	3 Replies 82 Views	Jul 29, 2018 by Smiles0805
An annular eclipse of the Sun occurs when the Moon doesn't quite cover the Sun in the zone of ... Started by cnetterville	1 Replies 24 Views	Jul 29, 2018 by ebenov
A total solar eclipse occurs for people in the Sun's A) umbra. B) penumbra. C) none of ... Started by LaDunn	1 Replies 47 Views	Jul 29, 2018 by kescobar@64
In the periphery of our vision, we are A) more sensitive to low frequencies than high ones. B) ... Started by serike	1 Replies 24 Views	Jul 29, 2018 by amandalm
The main difference between the retina of a human eye and that of a dog's eye is the A) ... Started by ssal	3 Replies 25 Views	Jul 29, 2018 by sabina576