NST1501
EXAM
OCTOBER 2024
, QUESTION 1
1.1. C
1.2. B
1.3. B
1.4. B
1.5. B
1.6. B
1.7. B
1.8. B
1.9. A
1.10. B
1.11. B
1.12. A
1.13. B
1.14. B
2.1 Define sublimation.
Sublimation is the process in which a solid changes directly into a gas without first becoming
a liquid. An example of sublimation is dry ice (solid carbon dioxide) turning into carbon
dioxide gas.
2.2 List three changes of states of matter.
1. Melting (solid to liquid)
2. Freezing (liquid to solid)
3. Evaporation (liquid to gas)
2.3 List two characteristics of gases.
1. Gases have no fixed shape and can expand to fill their container.
2. Gases have low density compared to solids and liquids, allowing them to be easily
compressed.
2.4 Identify the state of matter with the highest kinetic energy.
The state of matter with the highest kinetic energy is gas.
2.5 Define the particle model of matter.
The particle model of matter states that all matter is made up of tiny particles (atoms or
EXAM
OCTOBER 2024
, QUESTION 1
1.1. C
1.2. B
1.3. B
1.4. B
1.5. B
1.6. B
1.7. B
1.8. B
1.9. A
1.10. B
1.11. B
1.12. A
1.13. B
1.14. B
2.1 Define sublimation.
Sublimation is the process in which a solid changes directly into a gas without first becoming
a liquid. An example of sublimation is dry ice (solid carbon dioxide) turning into carbon
dioxide gas.
2.2 List three changes of states of matter.
1. Melting (solid to liquid)
2. Freezing (liquid to solid)
3. Evaporation (liquid to gas)
2.3 List two characteristics of gases.
1. Gases have no fixed shape and can expand to fill their container.
2. Gases have low density compared to solids and liquids, allowing them to be easily
compressed.
2.4 Identify the state of matter with the highest kinetic energy.
The state of matter with the highest kinetic energy is gas.
2.5 Define the particle model of matter.
The particle model of matter states that all matter is made up of tiny particles (atoms or
