Physics

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If a pizza absorbs more energy than it emits, its temperature A) decreases. B) is unaffected. ... Started by 123654777	3 Replies 81 Views	Jul 29, 2018 by miss_1456@hotmail.com
On a cold day your feet feel warmer on a rug than on a tile floor because a rug A) is usually ... Started by V@ndy87	1 Replies 73 Views	Jul 29, 2018 by Animal_Goddess
A good heat conductor is A) a poor insulator. B) a good insulator. C) neither of ... Started by Mr. Wonderful	1 Replies 131 Views	Jul 29, 2018 by bubulittle310@msn.cn
If air were a better conductor, at nighttime Earth would be A) considerably colder. B) ... Started by jace	1 Replies 116 Views	Jul 29, 2018 by stillxalice
A bare roof on a warmly heated home on a snowy day indicates A) an unwanted flow of heat B) poor ... Started by Jramos095	3 Replies 74 Views	Jul 29, 2018 by Andromeda18
You can safely hold your fingers on both sides of a candle flame due mainly to A) conduction. B) ... Started by Evvie72	1 Replies 53 Views	Jul 29, 2018 by cswans24
Blow on your hand with your mouth open. Then do the same with your lips puckered and you'll find ... Started by newyorker26	1 Replies 57 Views	Jul 29, 2018 by amandalm
Energy transfer by convection is primarily restricted to A) solids. B) liquids. C) gases. D) ... Started by saliriagwu	1 Replies 126 Views	Jul 29, 2018 by kiamars2010
The form of heat transfer that doesn't depend on a medium is A) conduction. B) convection. C) ... Started by Alainaaa8	3 Replies 105 Views	Jul 29, 2018 by joechoochoy
A region of expanding air tends to A) cool. B) warm. C) both of the these D) neither of ... Started by OSWALD	1 Replies 78 Views	Jul 29, 2018 by cassie_ragen
A parcel of warmed air rises due to A) random molecular motion. B) radiation. C) buoyancy. D) ... Started by 2125004343	1 Replies 106 Views	Jul 29, 2018 by blakcmamba
In a mixture of hydrogen gas, oxygen gas, and nitrogen gas, the molecules with the greatest average ... Started by folubunmi	1 Replies 162 Views	Jul 29, 2018 by angrybirds13579
Objects that radiate relatively well A) absorb radiation relatively well. B) reflect radiation ... Started by natalie2426	3 Replies 178 Views	Jul 29, 2018 by fdliggud
Sun's radiant energy is composed of shorter wavelengths than Earth's due to Sun's greater A) ... Started by mikaylakyoung	1 Replies 170 Views	Jul 29, 2018 by joewallace
If a pizza radiates more energy than it absorbs, its temperature A) decreases. B) is unaffected. ... Started by @Brianna17	1 Replies 132 Views	Jul 29, 2018 by hramirez205
Both black and white road surfaces absorb sunlight. The warmer road surface at the end of a sunny ... Started by melina_rosy	1 Replies 214 Views	Jul 29, 2018 by macagn
The temperature of outer space is A) zero. B) about 2.7 kelvin. C) meaningless. D) none of the ... Started by viki	3 Replies 84 Views	Jul 29, 2018 by perkiness
Both black and white road surfaces radiate energy. At midnight on a starry night the warmer road ... Started by melina_rosy	1 Replies 129 Views	Jul 29, 2018 by milbourne11
A blueberry pie will be a net absorber of energy when its temperature is A) higher than its ... Started by Mollykgkg	1 Replies 52 Views	Jul 29, 2018 by patma1981
If there were no greenhouse effect, Earth's average temperature would likely be A) near absolute ... Started by Collmarie	1 Replies 90 Views	Jul 29, 2018 by coyin
When you're ready for the hottest sips of coffee, add cream A) right away. B) at any time. C) ... Started by abc	3 Replies 278 Views	Jul 29, 2018 by cloudre37
Long ago a runaway greenhouse effect transformed the planet A) Mercury. B) Venus. C) Mars. D) ... Started by CQXA	1 Replies 95 Views	Jul 29, 2018 by Jane
Solar power is used in many parts of the world for A) heating water. B) generating electricity. ... Started by maychende	1 Replies 66 Views	Jul 29, 2018 by kishoreddi
The heat we enjoy on a sunny day is due mainly to the Sun's A) high surface temperature. B) ... Started by viki	1 Replies 60 Views	Jul 29, 2018 by meganlapinski
Solar power is the rate at which A) the Sun emits energy. B) solar energy is received from the ... Started by casperchen82	3 Replies 145 Views	Jul 29, 2018 by blakeserpa