Mix & Flow Final

Question 1

What does WHIMIS stand for?

Answer 1

Workplace Hazardous Materials Information System

Question 2

What does a yellow triangle mean?

Answer 2

Caution

Question 3

What does a orange diamond mean?

Answer 3

Warning

Question 4

What does a red octagon mean?

Answer 4

Danger

Question 5

Fluid

Answer 5

Anything that has bodices shape and can flow

Question 6

Slurry

Answer 6

A mixture of water and a substance to move the substance to a different place

Question 7

Pure Substance

Answer 7

A substance made up of only one type of matter.

Question 8

Mixture

Answer 8

A combination of different substances

Question 9

Mechanical Mixture

Answer 9

A mixture where you can see all the different substances.

Also called a heterogenous mixture

Question 10

Solution

Answer 10

A mixture that looks like all one substance.

Also called a homogenous mixture.

Question 11

Suspensions

Answer 11

A cloudy mixture in which droplets of one substance are held within another substance. Usually, if left undisturbed, the mixture will eventually separate

Question 12

Colloid

Answer 12

A cloudy mixture in which the droplets are too small to separate out.

Question 13

Solvent

Answer 13

A substance that dissolves a a solvent. (i.e., water)

Question 14

Solute

Answer 14

A substance that is dissolved into the solvent. (i.e., salt)

Question 15

Concentration

Answer 15

How much solute is dissolved into the solvent.

Question 16

Saturated Solution

Answer 16

A solution in which no more solute can be dissolved into

Question 17

Solubility

Answer 17

The maximum amount of solute you can dissolve into a certain amount of solvent.

Question 18

Saturation Point

Answer 18

A solution reaches this point when no more solute can be dissolved into the solvent.

Question 19

What are the key points in the particle model of matter?

Answer 19

All matter is made up of tiny particles.

The tiny particles are always moving

The particles may be attracted to each other

The particles have space between them.

Question 20

What factors affect how fast solute dissolves?

Answer 20

Temperature
Size of Pieces
Stirring

Question 21

Viscosity

Answer 21

How thick or thin the substance is.

If it is thicker it is more viscous

Question 22

Density

Answer 22

The amount of matter in a given volume.

Question 23

Which is less dense, warm water or cold water?

Answer 23

Warm water

Question 24

Buoyant Force

Answer 24

A force that pushes upward against an object to help it float in water.

Question 25

Buoyancy

Answer 25

The tendency of an object to float when placed in a fluid.

Question 26

Compressibility

Answer 26

Extent to which a substance can be compressed.

Question 27

Incompressible

Answer 27

When a substance cannot be compressed easily

Question 28

Pressure

Answer 28

The amount of force applied to a given area

Question 29

Which states of matter are incompressible

Answer 29

Solid and Liquid

Question 30

What is the difference between a hydraulic system and a pneumatic system?

Answer 30

Hydraulic uses liquids

Pneumatic uses air

Question 31

How does detergent remove stains from clothes?

Answer 31

They use a cleaning agent called a surfactant. The surfactants attach themselves to dirt and oil particles, separating them from the fabric.

Question 32

Why does the sickness “the bends” occur?

Answer 32

This sickness is caused when the diver ascends to quickly, so the pressure decreases rapidly. The sudden change in pressure causes nitrogen gas to bubble out of the blood and tissue, causing extreme pain.

Question 33

What is a treatment for the bends?

Answer 33

They put the sick person in a hyperbaric chamber. In the chamber they increase the pressure, allowing the nitrogen bubbles to release out of the body.

Question 34

How does a diaphragm pump work?

Answer 34

When the piston at the top of the device pulls up, fluids enter the device. When the piston pushes down, the fluid is released out.

Question 35

Explain how a bicycle pump works

Answer 35

When you pull up the piston at the top the cylinder, air fills the device. When you push down, it compresses the air, which pushes it down toward the opening at the bottom.

Question 36

What is the difference between a bathyscaph and a submarine?

Answer 36

In a bathyscaph, you sit in a sphere on the bottom of the ship. In a submarine, you are seated in the body.