0
Can a softer material scratch a harder material Say a copper sword is swung down by a magical force at 1000000 mph. Would it even put a scratch on a block of iron?
Wiki User
∙ 15y ago
Great question! Answer: Yes. In fact copper is used in explosively formed projectiles that blow up steel tanks and various armoured vehicles. When an object is in motion it has kinetic energy Ek=1/2mv2. When it runs into a surface, the energy has to go somewhere. If the energy exchange is enough, the hard surface, tank armour, etc. will be vaporized. Turn on your kitchen faucet and watch the water come out. Does it look like it would cut steel? There are machines called "waterjet cutters" that cut thick steel every day. All one needs do to accomplish this seemingly impossible feat is to use a 25-horsepower water pump to shoot water through a pinhole-sized nozzle made out of industrial diamond. No "magical force" is required here, just a couple million pounds per square inch.
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
What can a copper penny scratch?
Topaz,Calcite Cooprarte
What is harder a steel file can scratch a penknife blade or calcite scratches a copper coin?
the blade would be stronger because the copper would brake easier
What material does heat travel through best?
Copper.
Of what material is the bimetallic strip made?
steel and copper
What is a material that lets electricity pass through it easily?
copper :)
Will copper scratch stainless steel?
It shouldn't as stainless is harder than copper.
What can scratch the copper?
topaz calcite cooperate
Will quartz scratch a peice of copper?
Absolutely yes.
What can a copper penny scratch?
Topaz,Calcite Cooprarte
What mineral has the same hardness as a fingernail?
GypsumHardnessMineralAssociations and Uses1Talc (Softest)Talcum powder. (can be scratched by a fingernail.)2GypsumPlaster of paris.Gypsum is formed when seawater evaporates from the Earth's surface. (May be scratched by a fingernail or by a copper coin.)3CalciteLimestone and most shells contain calcite.(Can be scratched by a steel pocket knife or sometimes a copper coin. Will scratch a fingernail, may scratch a copper coin.)4FluoriteFluorine in fluorite prevents tooth decay.(Can be scratched by a steel pocket knife. Will scratch a fingernail and a copper coin.)5ApatiteWhen you are hungry you have a big "appetite".(Can be scratched by a steel pocket knife. Will scratch a fingernail and a copper coin.)6OrthoclaseOrthoclase is a feldspar, and in German, "feld" means "field".(Will not scratch glass but will scratch steel blades, copper coins & fingernails.)7Quartz (Will scratch glass, steel blades, copper coins & fingernails.)8TopazThe November birthstone. Emerald and aquamarine are varieties of beryl with a hardness of 8. (Will scratch glass, steel blades, copper coins & fingernails.)9CorundumSapphire and ruby are varieties of corundum. Twice as hard as topaz.(Will scratch glass, steel blades, copper coins & fingernails.)10Diamond (hardest)Used in jewelry and cutting tools. Four times as hard as corundum.(Will scratch all of the above.)
Why is gold and copper used in making jewelry?
because gold and copper are hardly reactive and dont scratch easily
Is copper a building material?
Yes, because copper is a metal, and metals could be used for building things. In fact, copper is used as a roofing material.
What is the material of bells?
copper
Which raw material used in copper?
The ores of Copper are usually copper carbonates such as Malachite.
Is aluminum and copper are non magnetic material?
" No copper isn't a magetic material " . From the science research scientists have concluded this .
Why is copper a good material for a planter?
Copper is a good material for a planter as it is cheap easy to mold and may also be health for plants as it can release copper into the soil to enrich it.
What type of material is a penny?
copper
