Chapter 3 Flashcards
1
Q
fluid
A
any material that can flow and takes the shape of its container.
2
Q
pressure
A
the amount of force exerted per unit area of a surface.
3
Q
pascal
A
the SI unit of pressure.
4
Q
atmospheric pressure
A
caused by weight of the atmosphere
5
Q
buoyant force
A
is the upward force that fluids exert on matter
6
Q
Archimedes principle
A
the buoyant force of an object in a fluid is an upward force equal to the weight of the fluid
7
Q
Bernoulli’s principle
A
the speed of a moving fluid increases, as fluid pressure decreases
8
Q
lift
A
upward force on an object
9
Q
thrust
A
pushing or pulling force exerted by the engine
10
Q
drag
A
force that opposes or restricts motion in a fluid
11
Q
Pascal’s principle
A
change in pressure at any point in an enclosed fluid will be transmitted equally to all parts of the fluid
