People can snorkel down to a depth of roughly one meter. This means that the additional pressure on the air in their lungs is roughly A) 9 800 N. B) 9 800 Pa. C) 9 800 ATM. D) 19 600 N. E) 19 600 N/m².

Question

Quizplus · Accepted Answer

Pressure is measured in Pascal (Pa) and at a depth of one meter, the pressure exerted on the air in the lungs is approximately 9 800 Pa. Choice A is incorrect because it refers to the force of gravity on a 1 kg object and not pressure. Choice C is incorrect because it refers to the number of atmospheres of pressure, which is not equivalent to the pressure in Pascals. Choice D is incorrect because it is double the actual pressure at a depth of one meter. Choice E does not make sense as it includes units that are not applicable to pressure.

People Can Snorkel Down to a Depth of Roughly One