Quest

Question 1

How do gases and liquids compare in their ability to be compressed?

Answer 1

Gases compress to about 10% of their original volume. The reason is, the gas molecules are more spread out. Gas molecules have lots of space to squish in to.

Liquids do not VISIBLY compress because the molecules are too close together. Liquid molecules really have no space to squish in to.

Question 2

Hydraulics

Answer 2

Uses a sealed liquid system to do work

Question 3

When pushing from a small syringe to large…

Answer 3

You gain force but loose distance

Question 4

How do gases and liquids compare in their ability to be attenuated?

Answer 4

Gas molecules are free and energetic so they easily attenuate into any space you give them. They take the shape & volume of their container

Liquid molecules are less energetic and stuck together so they DONT attenuate to fill spaces.
(Liquid does not fill the space) they fill the bottom of the container

Question 5

Fluid

Answer 5

Liquid or Gas

Question 6

Compress

Answer 6

Squish

Question 7

Attenuate

Answer 7

Stretch

Question 8

How does the Torricelli tube work?

Answer 8

Air goes into the syringe making low pressure inside the tube. Outside normal pressure wins and PUSHES liquid up.

Question 9

How does the Torricelli fountain work?

Answer 9

When syringe is pulled, air leaves the flask making low pressure. Normal pressure trapped in the vile PUSHES the water out.

Question 10

How do the Magdeburg Hemispheres work?

Answer 10

Removing air creates low pressure inside MH. Outside, normal pressure wins and pushes the MH together

Question 11

How does a vacuum cleaner work?

Answer 11

A fan blows air out of the vacuum, creating low pressure inside. Outside normal air rushes in pushing dirt along.

Question 12

How does a straw work?

Answer 12

Low pressure is made in lungs and mouth. Normal air on the outside pushes the drink up the straw

Question 13

The lower in a fluid you go,

Answer 13

The more pressure there is

Question 14

3 ways of increasing air pressure

Answer 14

• Increasing the number of molecules
• Compress the gas into a smaller space
• Heat the gas causing the molecules to move faster and collide with more force

Question 15

Why does air go into a syringe when you pull the plunger?

Answer 15

Air goes into the syringe because it can. The air flies into any space give it. Air is not pulled in.

Question 16

Hydraulics- down force
L-R
(5)

Answer 16

x5

Question 17

Hydraulics- Distance Traveled
L-R
(5)

Answer 17

/5

Question 18

Hydraulics- Area of Piston
L-R
(5)

Answer 18

x5