Particle Model Of Matter Physics

Question 1

Solid

Answer 1

The state of matter where the particles are linked by strong forces. They are packed closely together and move very little. The particles usually form a regular and specific pattern.

Question 2

Liquid

Answer 2

The state of matter where the particles have weaker bonds. They are still tightly packed but may move around each other.

Question 3

Gas

Answer 3

The state of matter where particles are far apart and are in constant random motion. There is no interactive between the particles.

Question 4

Melting Point

Answer 4

The temperature at which a solid turns into a liquid .

Question 5

Boiling Point

Answer 5

The temperature at which a liquid turns into a gas.

Question 6

Melting

Answer 6

When a solid changes to a liquid.

Question 7

Boiling

Answer 7

When a liquid changes a gas at the boiling point

Question 8

Evaporating

Answer 8

When a liquid changes to a gas below the boiling point

Question 9

Condensing

Answer 9

When a gas changes to a liquid.

Question 10

Specific Heat Capacity

Answer 10

The amount of energy required to raise the temperature of one kilogram of a substance by one degree Celsius. Often represented by the symbol ‘c’. Its unit it J/kg°C.

Question 11

Specific Latent Heat

Answer 11

The amount of energy required to change the state of one kilogram of the substance with no change in temperature. Often represented by ‘L’. Its unit is J/kg..

Question 12

Density

Answer 12

The mass per unit volume of a material. It can be thought of as representing how tightly packed the particles are within the material. Often represented by ‘ρ’. The unit of density is kg/m³.

Question 13

Formula to calculate specific heat capacity

Answer 13

∆E = m x c x ∆θ

Question 14

Formula to calculate specific latent heat

Answer 14

E = m x L

Question 15

Formula to calculate density

Answer 15

p = m / V

Question 16

Change Of State

Answer 16

When a substance changes from one state of matter to another (e.g. a solid changing into a liquid).

Question 17

Freezing

Answer 17

Another word for when a liquid changes into a solid.

Question 18

Evaporation

Answer 18

When a liquid changes into a gas.

Question 19

Condensation

Answer 19

When a gas changes into a liquid.

Question 20

How can you measure the volume of an irregular object?

Answer 20

By putting it in a cylinder of water and seeing the volume it displaces

Question 21

How do you measure the volume of a regular object?

Answer 21

Using a rule, micrometer or Vernier callipers

Question 22

3 poor conductors of heat

Answer 22

Glass, wood and plastic