Science chp3

Question 1

fluid

Answer 1

a non solid state of matter

Question 2

presure

Answer 2

the amount of force exerted per unit area of a surface

Question 3

pascal

Answer 3

the si unit of presure

Question 4

atmospheric presure

Answer 4

the light weight pressure caused by the weight of the atmosphere

Question 5

buoyant force

Answer 5

the upward force that keeps an object immersed in a floating liquid

Question 6

Archimedes principle

Answer 6

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

Question 7

Bernoulli principle

Answer 7

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

Question 8

lift

Answer 8

the upward force or pulling that moves in a fluid

Question 9

thrust

Answer 9

the pushing or pulling force exerted by the engine or aircraft or a rocket

Question 10

drag

Answer 10

a force to pull the velocity of the flow it opposes the direction of the aircraft an in combination with thrust determines the speen of an aircraft determines the speed

Question 11

pascals principle

Answer 11

the principle that states that a fluid contained in a vessels exerts a presure of equal internisty