1. If you were toasting marshmallows at your camp site, would it be better to hold the marshmallows with a stick or a metal rod over an open campfire? Explain how your answer relates to heat transfer. 2. What is the difference between conductors and insulators? Please include three examples for each one in your answer. 3. How is heat transferred when convection happens?
@pooja195 @EclipsedStar @Data_LG2 @bohotness @Compassionate @shrutipande9 @iambatman @ganeshie8
well for the first, when you plan to cook marshmallows, you should use a conductor which allows the energy(heat) to be transferred that will cook the marshmallow quickly. so which one do you think is a conductor? the metal rod or the stick?
btw Im done w/ #1
okay then, so for the explanation with number 2, it's the same thing with the first question... conductor allows the energy(heat) to be transferred in an object while insulator is the vice versa-does not allow heat energy to be transferred.
sowwy idk @golfing
Data, the first one is not about cooking the marshmellows. It is about NOT cooking your hand.
lol @e.mccormick
oh!! i'm not reading properly LOL now, i know why i did not get good marks in english :3
ur r ok man
sorry. which one did you choose for the first one though? you said you're done with that?
metal duh
no, as e.mc said, it's about NOT cooking your hand. If you use metal rod to hold the marshmallow while cooking it... what do you think will happen?
its earth science not cooking. My science teacher just wants the conductor
@SmartyPants27
the question says "If you were toasting marshmallows at your camp site, \(\sf \color{red}{\text{would it be better to hold}}\) the marshmallows with a stick or a metal rod over an open campfire? " I made a mistake on the previous one and I'm sorry for that. For the first question, you want something that will not allow the heat to transfer on your hand. SO you should choose an insulator.
See, I say #1 is a stick. The marshmellow will be right over the fire, so it will cook no matter what. But your hand, on the other side of the rod, is not directly over the fire. And you do not want to burn your hand.
I think you should use the stick because the metal rod would conduct heat to your hand and it could get burnt
ok well how bout #2 and 3?
Some conductors include metals like aluminum, silver, gold, copper and iron as well as water and ourselves. Some insulators include plastic, styrofoam, wool, and ceramic.
thats #2
3?
Ok well I guess you don't need me here :) GOOD LUCK!!! :D
Heat is transferred through convection when air or water circulates over a heat source. When it is down on the bottom, closer to the heat source it rises because warmer materials rise. When the material rises so high that it is away from, the heat source, it cools because cooler objects drop. #3
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