Vocab

Question 1

The principal that states that the pressurein a fluid decreases as the fluid’s velocity increases.

Answer 1

Bernoulli’s Principal.

Question 2

An upward force on an object that moves in a fluid

Answer 2

Lift

Question 3

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

Answer 3

Thrust

Question 4

A force parrapllel to the velocity of the flow; it opposes the diretion of an aircraft and, in combination with thrust, determines the speed of an aircraft.

Answer 4

drag

Question 5

The principal that states that a fluid in equilibrium contained in a vessel ecerts a pressure of equal intensity in all direction

Answer 5

Pascal’s principal

Question 6

The upward force that keeps an oject immersed in or floating on a liquid.

Answer 6

Buoyant force

Question 7

The principal 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 7

Archimedes’ principal

Question 8

A nonsolid state of matter in which atoms or molecules are free to move past ecah other

Answer 8

Fluid

Question 9

the amount of force exerted per uit area of a surface

Answer 9

pressure

Question 10

the SI unit of pressure

Answer 10

Pascal

Question 11

the pressure distributed on the atmospjere

Answer 11

atmospjeric pressure