unit

Question 1

Whats Pascals law

Answer 1

When pressure is applied from an outside source to a contained fluid the force is distributed equally thru all parts of the fluid

Question 2

Deffine fluid

Answer 2

Liquid or gas

Question 3

What are the 2 types of flow, an example of each and its definition

Answer 3

Laminar (Smooth pattern) ex: blood flow in arteries

Turbulent (Irregular flow pattern) ex: white river rafting

Question 4

define pressure

Answer 4

force per unit area

Question 5

deffine weight and mass, what are their diffrence

Answer 5

MASS: ammount of matter in an object
Weight: Force of gravity acting on an object

Diffrent: Mass stays the same based on location (earth, moon) but weight doesnt

Question 6

Deffine bouyancy

Answer 6

upward force fluid excerts on a object, determines if float or sinks

Question 7

Deffine Compressdibility

Question 8

What do pneumatic systems use, what do hydrolics

Answer 8

P-Gas H-liquid

Question 9

What does the buoyant force need to be to the mass for it to be a boat

Answer 9

NEEDS TO DISPLACE MORE WATER THAN ITS MASS FOR IT TO BE A BOAT

Question 10

What does a closed system mean, are pneumatics and hydraulics a closed system

Answer 10

It means that nothing can go out or come in, yes they are a closed system

Question 11

What’s the difference between cohesion and adhesion

Answer 11

COHESION: Atraction between particles in same substance

Adhesion: Atraction of particles of one substance to another

Question 12

Whats atmospheric pressure

Answer 12

Force atmosphere exerts on a unit of a substance area

Question 13

is hydraulic or pneumatic stronger, why?

Answer 13

Hydraulics is stronger, its because the fluids are less compressible making their be more pressure it can handle heavier loads

Question 14

Is hydraulics or pneumatic cleaner? why?

Answer 14

Pneumatic, air spills arnt harmful, Oil are

Question 15

Pneumatic or hydraulic is faster? why?

Answer 15

Pneumatics, bcuz air flow rate is faster

Question 16

Which is smaller and easier? how?

Answer 16

Pneumatics are easier, These systems have fewer moving parts and can be easily controlled through levers or push buttons.

Question 17

What system is more efficent, high power?

Answer 17

Hydraulics, can generate large forces, making it ideal for heavy machinary

Question 18

what has more control hydraulics or pneumatic

Answer 18

Hydraulics, smooth and acurate movement, great for industrial and automotives apllication

Question 19

what is faster and light weight and cheeper, hydraulic or pneumatic

Answer 19

Pneumatic

Question 20

NEEDS LOADS OF POWER

Answer 20

HYDRAULIC

Question 21

NEEDS TO BE FAST LIGHT AND CLEAN

Answer 21

PNEUMATIC

Question 22

KEY IDEA OF PRESSURE

Answer 22

PRESURE INSIDE CONTAINER PUSHES OUT, OUTSIDE CONTAINER PUSHES IN, IF EQUAL IT STAYS THE SAME

Question 23

WHAT WOULD HAPPEN TO CHIPS IN A MOUNTAIN

Answer 23

EXPAND

Question 24

IS ON A MOUNTAIN A HIGHER OR LOWER OUTSIDE PRESSURE

Answer 24

LOWER

Question 25

IS UNDERWATER A HIGHER OR LOWER OUTSIDE PRESSURE

Answer 25

HIGHER

Question 26

WHY DOES A LOWER HOLE IN A BOTTLE FLOW FASTER THAN A HIGHER HOLE

Answer 26

BECAUSE ALL THE PRESSURE IS ABOVE U AND THE WEIGHT IS PRESSING DOWN

Question 27

DOES FLUID EXERT PRESSURE IN ALL DIRECTION TRUE OR NO

Answer 27

YES

Question 28

DOES ATMOSPHERIC PRESSURE PUSH AROUND U EVERYWHERE

Answer 28

YES, ITS THE WEIGHT OF ALL THE AIR PUSHING ON YOU

Question 29

how does tempeture impact pressure

Answer 29

DOES A HIGHER TEMP MEAN A HIGHER PRESSURE YES!

Question 30

Whats neutral, positive and negative buoyancy

Answer 30

NEUTRAL- REMAINS IN 1 PLACE POSITIVE - RISE NEGATIVE - SINK

Question 31

EX OF PNEUMATIC

Answer 31

air brakes (truck) blood pressure monitor (uses air to mesure bp)

Question 32

EX OF HYDRAULIC

Answer 32

NORMAL CAR BRAKE HYDRAULIC PUMP

Question 33

A SYRINGE IS CONNECT VIA TUBE, THEIR IS A BIG SYRING AND A SMALL ONE, WHAT DOES THE SMALLER ONE DO (2) EASIER THAN THE LARGER AND VISE VERSA

Answer 33

SMALL- MOVES FARTHAR THAN THE PLUNGER IN LARGER SIDE AND IS EASIER TO MOVE (when fluid is pushed to larger, it spreads thruought a bigger volume making it easier to move) LARGER- APPLIES MORE FORCE

Question 34

WHAT ARE THE COMPONENENTS IN A HYDRAULIC AND PNEUMATIC SYSTEM

Answer 34

PUMP (FORCES FLUID THRU SYSTEM) CONDUCTOR ( PROVIDES PATHWAY TO CARRY FLUID) VALVES (KEEPS FLUIDS MOVING DESIRED DIRECTION AT DESIRED TIME) PRESSURE GAUGE (MESURES PRESSURE)