Kinetic Theory Of Matter Worksheet

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ACh HCh
Name ________________________________________________________ Hr ________
Energy Worksheet 8-1 – Things you already know.
Kinetic Theory of Matter:
Molecules are always moving. This is known as the kinetic theory of matter.
We measure this kinetic energy with a thermometer as temperature.
The greater the material's internal energy, the higher the temperature of that material.
Heat is the energy flow between objects of different temperature.
Heat and temperature are NOT the same.
Target: define temperature (knowledge)
1. Define temperature.
Target: describe the general properties of solids, liquids and gases.
(knowledge)
Use the diagram and your knowledge of the phases of matter to identify if the description below best
describes a solid (S), liquid (L), gas (G) or combination of these.
2. Particles are in constant motion. _________
6. Particles are far apart. _______________
3. Has a definite volume. _________________
7. Strongest forces between particles. ________
4. Has a definite shape. __________________
8. Fluid (able to flow) ______________
5. Is able to be compressed. ______________
9. Volume same as container. ______________
Target: describe the 6 phase changes that matter can undergo and be able to recognize each as
being either heat absorbing (endothermic) or heat releasing (exothermic). (knowledge)
Write in the word solid, liquid or gas to complete the following descriptions of changes in matter.
10. Melting is the change from ______________________ to ______________________.
11. Sublimation is the change from _____________________ to ________________________ .
12. Condensation is the change from ______________________ to ________________________ .
13. Deposition is the change from _____________________ to ________________________ .
14. Freezing is the change from ________________________ to _______________________.
15. Vaporization is the change from ______________________ to _______________________ .

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