0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why does a piece of metal at room temperature feel cooler than a piece of wood room temperature?
If the room temperature is cooler then you are. it is because metal is a good conductor of heat. When you put your hand on the metal it immediately starts to draw heat away from your hand this gives you the impression that it is cooling you, which it is. If you do the same with a piece of wood it is not able to draw the heat away from you be cause it is a reasonable insulator.
Why does a metal spoon feel cooler than a piece of wood at 20C?
Because metal has better thermal conductivity than wood. Thermal conductivity depends of the atomic and molecular structure of the stuff. The air is a poor thermal conductor, but water is better.
If you have wet hands and pick up a piece of metal that is below freezing point you may stick to it This doesn't happen with wood Why not?
Metals have high heat conductivity compared to wood. When your hands touch a piece of wood the surface layer of the wood heats up to your skin temperature quickly and does not transfer this heat very quickly to the bulk of the wood. Therefore your skin ends up transferring very little heat and does not cool down very much. When you pick up a piece of metal heat begins transferring from your hands to the surface of the metal and is easily carried away into the bulk of the metal. The surface layer of the metal therefore doesn't heat up very quickly (it's passing most of the heat your hands give it into the bulk) and your skin therefore loses a lot of heat and cools down a lot. It some cases the outside of your skin can quickly drop below freezing. If your hands have any moisture on them then this moisture might freeze, "sticking" you to the piece of metal.
Why does a piece of wood float in water?
Because the piece of wood is less dense than the water
Why a piece of metal feels colder than wood kept in cold place?
Lets say room temp is 75 degrees. Your body temp is around 98 degrees. metal conducts heat very well so when you touch it all the heat is transferred to the metal whereas wood is more insulating and the heat from your finger leaves at a much slower rate. Also, there is also a difference in emissivity between the two materials. They radiate energy differently. The metal object not only feels colder in the room (or hotter in the sun), it really is a different temperature. Wiki/Google "emissivity." Metal is a thermal conductor and Wood is a thermal insulator. When you touch the metal, the energy transfers rapidly to the metal, making it colder. When you touch the wood, the energy transfers very slowly from your hand to the wood.
What would make a better reflector a piece of metal or a piece of wood?
Metal
What is a abrofile?
a piece of metal that cuts wood
Which is heavier a piece of metal or a piece of wood?
It will depend on the size of the two pieces. A log is going to be heavier than a penny. Metal is denser than wood.
What piece of wood that stands in the ground?
A post, stake, pole.
Better reflector a piece of metal or a piece of wood?
piece of metal because most pieces have smooth surfaces so the light bounces off perfectly. but wood has a rough surface and wood also absorbs most of the light so it wouldn't reflect off.
How were parks made?
They are made of wood or metal. The ground might be grass.
What is the definition of girder?
girder isa a large strong piece of metal or wood.
What are homonyms for a piece of wood in the ground and to send a letter?
post
What is a sound post?
The sound post is the cylindrical piece of wood set upright inside of the violin to keep the body from collapsing from the string tension
Add a piece of wood that stands in the ground to a sratch or dent and get a stamp on a letter?
postmark
Where is the materials for a hammer come from?
the matierials for a metal hammer are wood(trees) and metal ore(from the ground) The matierials for a rubber mallet are rubber (rubber trees)wood(tree) The matierials for a wooden mallet are wood(trees)
What is A narrow piece of wood or metal used to join pieces called?
It's called a dowel.
