Science ~ Particles

Question 1

How many materials are made of particles?

Answer 1

every material in the world

Question 2

What determines whether they are solid, liquid or gas?

Answer 2

The arrangement of the particles

Question 3

Every material has different properties. What does this determine?

Answer 3

The behaviour of the material.

Question 4

What are some of the different properties?

Answer 4

Shiny
Hard
Conducts energy

Question 5

What type of substance only has one type of particle?

Answer 5

A pure substance

Question 6

What type of substance has more than one type of particle?

Answer 6

A mixture

Question 7

What material is stronger than pure metals because of its different sized atoms?

Answer 7

Alloys

Question 8

What two factors does density rely on?

Answer 8

Mass and volume

Question 9

What is mass measured in?

Answer 9

Grams or Kilograms

Question 10

What is volume measured in?

Answer 10

Cm3

Question 11

How do you calculate the volume of an object?

Answer 11

Height X Width X Depth

Question 12

How do you calculate density?

Answer 12

Mass
————
Volume

Question 13

Which substances flow?

Answer 13

Gas and liquid

Question 14

Which substances can be compressed?

Answer 14

Gas

Question 15

Which substances are in a fixed shape?

Answer 15

Solid

Question 16

Which state of matter has the most energy?

Answer 16

Gas

Question 17

Which state of matter has the least energy?

Answer 17

Solid

Question 18

Which two states of matter have a high density?

Answer 18

Liquid and Solid

Question 19

What is the transition between solid to liquid called? 

Answer 19

Melting

Question 20

What is the transition from liquid to solid called? 

Answer 20

Freezing

Question 21

What is the transition from liquid to gas called?

Answer 21

Evaporation 

Question 22

What is the transition from gas to liquid called?

Answer 22

Condensation

Question 23

What is the transition from solid to gas called?

Answer 23

Sublimation

Question 24

What is the transition from gas to solid called?

Answer 24

Deposition

Question 25

If the temperature is above the boiling point, what state of matter is it? 

Answer 25

Gas

Question 26

If the temperature is between the melting and boiling points, what state of matter is it? 

Answer 26

Liquid

Question 27

If the temperature is below the melting point, what state of matter is it? 

Answer 27

Solid

Question 28

What is diffusion? 

Answer 28

Diffusion is the movement of particles from an area of high concentration to an area of low concentration down a concentration gradient, it requires no energy 

Question 29

What are four of the factors that affect diffusion? 

Answer 29

1. This state of matter as only gases and liquids can diffuse 2. the temperature: if the particle has more heat has more energy that thought it will move quicker. 3. The size of the particle the bigger The particle the slower it diffuses 4. concentration gradient is the bigger, the difference between high and low areas. The faster diffusion is 

Question 30

What can you do to increase the gas pressure in something?

Answer 30

1. Heat up the particles so they move faster 2. Add more air

Question 31

What can you do to decrease the gas pressure in something?

Answer 31

1. Cool the particles down so they move slower 2. Let some air out