Is gold attracted to a magnet the same as other metals?
2006-06-30 14:13:42 · 11 answers · asked by Alan B 1 in Science & Mathematics ➔ Physics
If you can measure the weight and volume of the ring, you could find its density. The value will be different depending on what purity it is (24k will be denser than 12k, for example). Most gold in jewelry is not 24k, but some alloy with nickel, copper, etc. that makes it harder. These alloys are also how you get white, pink, and green gold.
Biting a ring will only give you marks if it is 24k gold.
density would be the easiest way, I'd say. (density = mass/volume)
You'll need the equipment to measure pretty small masses and volumes, though, which most people don't have in their kitchens.
2006-06-30 14:24:51 · answer #1 · answered by Anonymous · 1⤊ 1⤋
Gold is not magnetic. It is heavier than most other metals. You could measure its density, which would tell you roughly how pure it is but for something as small as a ring you would need a balance which would measure accurately to maybe 1/10 or 1/100 gram.
If you do have an accurate balance, here is how you would test for percent gold content.
1) Weigh your ring eg: 10.00 grams
2) Place a beaker half filled with water on a scale. The scale will have to be re-zeroed with the beaker & water on it. If it does not have this feature try turning the scale off then on with the beaker & water on it. See your local butcher if you cant get hold of a scale.
3) Attach a fine thread or hair to the ring and submerse it in the water. NB it must be fully submerged but suspended "not touching the sides or bottom". Take the reading off the scale eg: 0.56 grams
4) Divide the dry weight of the gold by the suspended one eg: 10.00 \ 0.56 = 17.8
5) Multiply the result by 5.096 eg: 17.8 x 5.096 = 90.7088 percent gold.
2006-06-30 21:19:38 · answer #2 · answered by Owlwings 7 · 0⤊ 0⤋
Measure its density.
Weigh it first, then drop it into a graduated cylinder of water and see how much the volume goes up.
Gold has a very high density - 19320 kg m^-3. This is more than twice that of bronzeor iron and 70% higher than lead. Platinum is higher but is the wrong colour, tungsten is similar but is hard not soft.
2006-06-30 21:26:19 · answer #3 · answered by Epidavros 4 · 0⤊ 0⤋
you can tell buy 2 ways 1 if you ware it aND your finger turns like a green color its not 2nd by the color it is if it .
gold some times will attract to a magnet but it has to bee re ll gold
2006-06-30 21:18:14 · answer #4 · answered by cheryl b 1 · 0⤊ 0⤋
Most gold jewelry isn't pure gold because pure gold is so soft.
But I'm sure any jewler at say a mom and pop shop would be able to help you out.
2006-07-01 02:32:29 · answer #5 · answered by minuteblue 6 · 0⤊ 0⤋
1.fall down your ring on a plain surface. it will sounds sonorous.
2. put your ring in the water. the mass will decide it is gold or not. (needs some simple calculation).
2006-06-30 21:32:34 · answer #6 · answered by manish 1 · 0⤊ 0⤋
eureka eureka!!! i ve found it.....
do what archemedes did centuries ago
a king had a gold crown made. he had some doubt on the goldsmith n thot that this person had mixed some artificial gold in the crown.
archemedes was given the job to prove this.....n he discovered the archemedes principal..........(while havin a bath)
i hope u ve at least read THAT.......
2006-06-30 23:14:56 · answer #7 · answered by lost_n_forlorn 1 · 0⤊ 0⤋
Bite it! Gold is soft, if it leaves a mark its real!
2006-06-30 21:17:03 · answer #8 · answered by North of Heaven 3 · 0⤊ 0⤋
Taste it. It should taste like gold.
2006-06-30 21:15:05 · answer #9 · answered by Anonymous · 0⤊ 0⤋
measure its density,i donot see any other method
2006-06-30 21:42:56 · answer #10 · answered by ghulamalimurtaza 3 · 0⤊ 0⤋