Physics

Replies / Views	Last post
When an atom loses an electron, it becomes A) sublimated. B) dissociated. C) a plasma. D) an ... Started by Cooldude101	1 Replies 78 Views	Jul 27, 2018 by bd5255
Which of the following statements about lunar phases is true? A) It is possible to have two full ... Started by future617RT	1 Replies 52 Views	Jul 27, 2018 by mtmmmmmk
Constellations are close clusters of stars, all at about the same distance from the Sun. Indicate ... Started by fagboi	3 Replies 95 Views	Jul 27, 2018 by mjbamaung
Earth is nearly twice as large as Venus. Indicate whether the statement is true or ... Started by vicky	1 Replies 92 Views	Jul 27, 2018 by bubulittle310@msn.cn
Why is Venus so much hotter than the Earth? A) because it has much more carbon dioxide in its ... Started by schs14	1 Replies 75 Views	Jul 27, 2018 by ultraflyy23
How does the idea of inflation account for the existence of the seeds of density from which galaxies ... Started by abc	1 Replies 73 Views	Jul 27, 2018 by Anna
All the planets orbit the Sun in exactly the same plane as the Earth. Indicate whether the ... Started by lb_gilbert	3 Replies 114 Views	Jul 27, 2018 by Hikerman221
How can an electron in an atom lose energy to go from a higher energy level to a lower energy level? ... Started by mckennatimberlake	1 Replies 265 Views	Jul 27, 2018 by akudia
The core of the Sun is A) at the same temperature and density as its surface. B) composed of ... Started by fasfsadfdsfa	1 Replies 87 Views	Jul 27, 2018 by ky860224
Like our Moon and most others, all four large Jovian satellites have one side constantly fixed ... Started by skymedlock	1 Replies 108 Views	Jul 27, 2018 by catron30
What kind of thermal radiation does the Earth emit? A) infrared light B) infrared, visible, and ... Started by javeds	3 Replies 190 Views	Jul 27, 2018 by whitcassie
Which adjective does not necessarily describe a known feature of the early universe? (Be sure to ... Started by ec501234	1 Replies 58 Views	Jul 27, 2018 by tjayeee
A star with a right ascension of 2.6 hrs will rise 2.6 hours after the vernal equinox. Indicate ... Started by asan beg	1 Replies 95 Views	Jul 27, 2018 by kilada
The two smallest planets, Mercury and Pluto, have no moons. Indicate whether the statement is ... Started by ashley	1 Replies 74 Views	Jul 27, 2018 by fraziera112
Sunspots are cooler than the surrounding gas in the photosphere because A) they are regions where ... Started by formula1	3 Replies 72 Views	Jul 27, 2018 by Ksh22
A tropical year is the same as a sidereal year. Indicate whether the statement is true or ... Started by sarasara	1 Replies 64 Views	Jul 27, 2018 by marict
Which in its gaseous form is not a greenhouse gas? A) molecular nitrogen B) carbon dioxide C) ... Started by lb_gilbert	1 Replies 101 Views	Jul 27, 2018 by parker125
The Big Bang theory seems to explain how elements were formed during the first few minutes after the ... Started by nummyann	1 Replies 78 Views	Jul 27, 2018 by annierak
What is one piece of scientific evidence for human contributions to global climate change? A) ... Started by waynest	3 Replies 101 Views	Jul 27, 2018 by Sierray
If the Moon is rising at midnight, the phase of the Moon must be A) first quarter. B) waxing ... Started by haleyc112	1 Replies 146 Views	Jul 27, 2018 by josephsuarez
At approximately what time would a full moon be on your meridian? A) 6 P.M. B) 9 A.M. C) noon D) ... Started by mydiamond	1 Replies 118 Views	Jul 27, 2018 by blakeserpa
What keeps the Sun's outer layers from continuing to fall inward in a gravitational collapse? A) ... Started by Cooldude101	1 Replies 116 Views	Jul 27, 2018 by bd5255
If the polar ice decreases, what would happen, and why? A) cooling, because melted ice cools ... Started by mia	3 Replies 45 Views	Jul 27, 2018 by marict
By what process does the Sun generate energy? A) nuclear fusion B) chemical reactions C) ... Started by savannahhooper	1 Replies 81 Views	Jul 27, 2018 by Koolkid240
Of all the Galilean satellites, the surface of Europa is the youngest in age. Indicate whether ... Started by tatyanajohnson	1 Replies 71 Views	Jul 27, 2018 by asdfasdf