P6(Molecules And Matter)

Question 1

What is the formula for density

Answer 1

Question 2

What is the movement for a solid

Answer 2

Vibrate about fixed positions, particles are clearly packed

Question 3

What is the movement for liquids

Answer 3

Layers can flow over each other, particles still in contact with each other

Question 4

What is the movement for Gases

Answer 4

Random directions and far away from each other and have random speeds

Question 5

What is the Energy for solids

Answer 5

Least energy compared to liquids and gases because particles have restricted movements

Question 6

What is energy for liquids

Answer 6

More energy compared to solids but less energy compared to gases because their particles have more more movement

Question 7

What is the energy for Gases

Answer 7

Most energy compared to liquids and solids because they have higher speeds

Question 8

What is the force for solids

Answer 8

Strong forces of electrostatic attraction compared to liquids and gases

Question 9

What is the force for liquids

Answer 9

Particles are still compact strong force of electrostatic attraction but less then solids

Question 10

What is the force for Gases

Answer 10

Weak forces of electrostatic attraction

Question 11

What is the change of state called from liquid to gas

Answer 11

Boiling

Question 12

What is the change of state called from gas to liquid

Answer 12

Condensation

Question 13

What is the change of state called from liquid to solid

Answer 13

Freezing

Question 14

What is the change of state called from solid to liquid

Answer 14

Melting

Question 15

What is the change of state called from a gas to a solid AND a solid to a gas

Answer 15

Sublimation

Question 16

What is internal energy

Answer 16

Sum of Ke and Pe in a particle system

Question 17

What is specific latent heat fusion

Answer 17

Energy needed to change the state of 1kg of the substance from solid to liquid without changing it’s temperature

Question 18

What is the formula for specific latent heat of fusion

Answer 18

Question 19

What is specific latent heat of vaporisation

Answer 19

Energy needed to change the state of 1kg of the substance from liquid to vapour without changing the temperature

Question 20

What is the formula for specific latent heat of vaporisation

Answer 20

Question 21

How is pressure caused

Answer 21

Pressure of a gas is caused by the random impacts of gas molecules on surfaces that are in contact with the gas

Question 22

How does the gas pressure increase when the temperature of a gas increases

Answer 22

Question 23

How can the temperature of a gas increase

Answer 23

Question 24

What is the formula that relates pressure,volume and constant

Answer 24

Question 25

Worked example of Pressure, volume and constant question

Answer 25

Question 26

What relates gas pressure and temperature

Answer 26

Gas pressure is directly proportional to temperature for a fixed volume of gas

Question 27

What is the formula that relates pressure force and area

Answer 27

Pressure= force/area

Question 28

What is boyle’s law

Answer 28

Pressure is inversely proportional to volume for a fixed temperature

Question 29

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Question 30

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Question 31

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Question 32

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Question 33

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Question 34

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Question 35

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Question 36

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Question 37

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Question 38

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Question 39

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Question 40

Answer 40