States Of Matter

Question 0

What is matter made of?

Answer 0

Particles

Question 1

What is matter?

Answer 1

Anything that has mass or takes up space.

Question 2

What are states of matter?

Answer 2

Matter which is found in a variety of ways.

Solid, liquid or gas.

Question 3

What is the amount of matter in an object referred to?

Answer 3

Mass

Question 4

What is the volume of something?

Answer 4

The amount of space a solid, liquid or gas takes up.

Question 5

Define fluid

Answer 5

Any substance that flows, both liquids and gases are classified as fluids.

Question 6

How many cm3 is there in 1L?

Answer 6

1000 cm3

Question 7

Is a liquid, gas or solid compressible?

Answer 7

Gas

Question 8

What does compressible mean?

Answer 8

Substances that require little effort to squeeze the particles together.

Question 9

What is it called when substances require a large amount of force to squeeze the particles together?

Answer 9

Incompressible

Question 10

What are solids?

Answer 10

Substances that keep the same shape and size regardless of the shape of the container. They are difficult to compress making them incompressible.

Question 11

What are liquids?

Answer 11

Substances that keep the same volume but have no fixed shape, they take on the shape of the container. They are difficult to compress making them incompressible.

Question 12

What are gases?

Answer 12

Substances that take on the shape of their container, but they are compressible so their volume can be made smaller or larger. Gases spread out so they do not stay in a container unless it has a lid. Gas particles move around taking up all the available space.

Question 13

What is the particle model?

Answer 13

A model which explains the different properties of solids, liquids and gases.
According to the model:
All substances are made of particles.
Particles are attracted to surrounding particles.
The particles are always moving.
The hotter the substance, the faster the particles move.

Question 14

How are the particles in solids structured?

Answer 14

The particles have strong attractive forces, so there is little space between them. This gives solids a fixed shape and volume. The particles can’t move freely but they vibrate in fixed positions.

Question 15

How are the particles in liquids structured?

Answer 15

The particles are close together so there is little room for compression. Attractive forces hold the particles together, but it isn’t as strong as in solids. So liquids have a fixed volume but no fixed shape. The particles in a liquid vibrate faster than those in a solid but less than that of gases.

Question 16

How are the particles in a gas structured?

Answer 16

Particles are only weakly attracted to each other, so gases don’t have a fixed shape or volume. The distance between particles is also very large, so it can be easily compressed. Gas particles have much more energy than solids and liquids, they zip around and often collide with other particles and the walls of the container they are in.

Question 17

What is an exemption of the particle model?

Answer 17

Water when it freezes does not contract like the particle model suggest, instead the particles once lower than 4° starts to get larger again.

Question 18

What are the two types of solids?

Answer 18

Crystalline Solids:
More than 90% of solids are crystalline
Particles are arranged in a regular, repeated pattern.
Amorphous Solids:
Particles are arranged in a more random fashion.

Question 19

What is diffusion?

Answer 19

The spreading of one substance through another. This spreading occurs when the particles each substance become mixed together.

Question 20

In what form call diffusion take place?

Answer 20

Gas and liquids.

Faster in gas because the particles move faster.

Question 21

What are cohesive forces?

Answer 21

Attractive forces between similar particles in a substance.

Question 22

What are adhesive forces?

Answer 22

Attractive forces between particles of different substances.

Question 23

What is another name for cohesive and adhesive forces?

Answer 23

Cohesion and Adhesion.

Question 24

What is surface tension?

Answer 24

At the surface of a liquid where it meets the air, the attraction of the particles is very strong causing the surface to behave as if it has a thin skin over it.

Question 25

What is viscosity?

Answer 25

Viscosity is a measure of how much resistance a fluid offers against movement.

Question 26

Is something with a high viscosity easy or hard to pour?

Answer 26

Hard

Question 27

What are the stages of changing states?

Answer 27

Solid » Melting » Liquid » Evaporation/Boiling » Gas » Condensation » Liquid » Freezing » Solid

Question 28

What is it called when substances turn from being a solid into a gas without turning into a liquid.

Answer 28

Sublimation

Question 29

What is the reverse process of sublimation?

Answer 29

Deposition

Question 30

What is a boiling point?

Answer 30

The temperature in which a substance turns from liquid to gas.

Question 31

What is a melting point?

Answer 31

The temperature in which a substance turns from solid to liquid.

Question 32

What is density?

Answer 32

Density is a measure of how much matter there is in an object compared with how much space it takes up.

Question 33

How is density calculated?

Answer 33

Density=mass/volume
Eg. 10g/5cm3
Density 2g/cm3

Question 34

What is the density of water?

Answer 34

1.00g/cm3

Question 35

When a substance is heated does it expand or contract?

Answer 35

Expand