States of Matter

Question 1

What is the kinetic particle theory?

Answer 1

It explains the properties of the different states of matter.

Question 2

Solids properties:

Answer 2

Close together
Regular pattern
Fixed position
Can't flow (particles can't move)
Can't be compressed/squashed (no space to move to- too close together)

Question 3

Liquids properties:

Answer 3

Close together
Random pattern
Move around each other
Flow & take shape of container (can move)
Can’t be compressed/squashed (no space to move to- too close together)

Question 4

Gases properties:

Answer 4

Far apart
Random pattern
Move quickly in any direction
Flow & fill container (can move fast in all directions
Can be compressed/squashed (far apart- space to move into)

Question 5

What is conduction?

Answer 5

The transfer of heat in direct contact with each other. e.g. metals (good conductor)

Question 6

What is convection?

Answer 6

The transfer of heat within a fluid due to hotter and less dense material to rise and colder more dense material to sink.

Question 7

What is a poor conductor called?

Answer 7

An insulator.

Question 8

Why does a fluid become less dense when it is heated?

Answer 8

When a fluid is heated the particles expand and moving apart, causing the fluid to become less dense.

Question 9

What 3 things can increase the rate of evaporation?

Answer 9

1. If the temperature of the liquid increased
2. If the surface area is increased
3. Temperature of the surroundings increased

Question 10

What 2 things can increase the rate of condensation?

Answer 10

1. Temperature of the object

2. Surface area