Book 2 Chapter 3 Section 1-4

Question 1

non solid state of matter which the atoms are free to move past each other

Answer 1

Fluid

Question 2

amount of force exerted per unit area of a surface

Answer 2

Pressure

Question 3

the SI unit of pressure

Answer 3

pascal

Question 4

pressure caused by weight of the atmosphere

Answer 4

Atmospheric Pressure

Question 5

upward force that keeps an object immersed in or floating on a liquid

Answer 5

buoyant force

Question 6

principle that states that the buoyant force on an object in a fluid is an upward force equal to the weight of the volume of fluid that the object displaces

Answer 6

Archimedes’ Principle

Question 7

principle that states the pressure in a fluid decreases as the fluid’s velocity increases

Answer 7

Bernoulli’s principle

Question 8

upward force on an object that moves in a fluid

Answer 8

lift

Question 9

pushing or pulling force exerted by the engine of an aircraft or rocket

Answer 9

thrust

Question 10

force parallel to the velocity of the flow; it opposes the direction of an aircraft and, in combination with thrust, determines the speed of the aircraft

Answer 10

drag

Question 11

principle that states that a fluid in equilibrium contained in a vessel exerts intensity in all directions

Answer 11

Pascal’s Principle