chapter 3

Question 1

fluid

Answer 1

a nonsolid state of matter in wich the atoms or molecules are free to move past eachother

Question 2

pressure

Answer 2

the amount of force exerted per unit area of a surface

Question 3

pascal

Answer 3

the SI unit of pressure

Question 4

atmospheric pressure

Answer 4

the pressure caused by the weght of atmosphere

Question 5

buyoant force

Answer 5

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

Question 6

Archimedes principle

Answer 6

the princibelr that states that the byoant force on an boject in a fluid in an upward force equaly

Question 7

bernouills pricciple

Answer 7

the principle that states that the pressure in a fluid decreases as the fluids velosity increases

Question 8

lift

Answer 8

an upward force on an object that moves in a fluid

Question 9

thrust

Answer 9

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

Question 10

drag

Answer 10

a force parellel to the velosity of the flow

Question 11

pascals princaple

Answer 11

the principle that states that the fluid in equilibrium containd in a vessel exertes a pressure of equality intensity in all directions