chapter 5 vocab

Question 1

an immersed body is buoyed up by a force equal to the weight of the fluid it displaces (for both liquids and gases)

Answer 1

Archimedes’ principle

Question 2

the pressure exerted against bodies immersed in the atmosphere, resulting from the weight of air pressing down from above

Answer 2

atmospheric pressure

Question 3

any device that measures atmospheric pressure

Answer 3

barometer

Question 4

the pressure in a fluid moving steadily, without friction or external energy input, decreases when the fluid velocity increases

Answer 4

Bernoulli’s principle

Question 5

the product of pressure and volume is a constant for a given mass of confined gas regardless of changes in either pressure or volume individually, so long as temperature remains unchanged

Answer 5

Boyle’s law

Question 6

the net upward force that a fluid exerts on an immersed object

Answer 6

buoyant force

Question 7

the amount of matter per unit volume

Answer 7

density

Question 8

a change in pressure at any point in an enclosed fluid at rest is transmitted undiminished to all points in the fluid

Answer 8

Pascal’s principle

Question 9

the ratio of force to the area over which that force is distributed

Answer 9

pressure

Question 10

a floating object displaces a weight of fluid equal to its own weight

Answer 10

principle of flotation