I have a watch that says water resist to 4 ATM
2007-04-27 14:34:38 · 4 answers · asked by Rey D 2 in Science & Mathematics ➔ Physics
That stands for atmosphere, and is the pressure at sea level (~14.7 psi/101 kPa). One atmosphere of pressure corresponds to about 10 meters (33 ft) of water.
2007-04-27 14:52:13 · answer #1 · answered by injanier 7 · 0⤊ 0⤋
Atm = atmospheres
Your watch is rated for a pressure equal to about 4 atmospheres. I'd belive it if I saw it....lol
2007-04-27 21:40:03 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Just to add to "fizixx", who is quite right:
This corresponds to a depth of about 30m of water. Many watches make this claim, but it is usually completely bogus and I would definitely not recommend wearing the watch under water at all. My son had such a watch which was ruined after being under at most 2m of water. This false advertising should be stopped!
2007-04-27 21:55:33 · answer #3 · answered by Diana 2 · 0⤊ 0⤋
atm stands for atmosphere. one atm is equal to 100 kpa (pa stands for pascals, another unit for pressure)
2007-04-28 02:14:18 · answer #4 · answered by Dr. Eddie 6 · 0⤊ 0⤋