2. Random States of Matter Interpreting Graphs State Changes Examples 10 20 30 40 50 40 30 20 10 50 40 30 20 10 50 40 30 20 10 50 40 30 20 10

3. States of Matter – 10 Points QUESTION: This state of matter has very weak intermolecular forces. ANSWER: Gas Back

4. States of Matter – 20 Points QUESTION: This state of matter will take the shape of its container but keep its volume. ANSWER: Liquid Back

5. States of Matter – 30 Points QUESTION: The _____________ weaken as a substance changes from a liquid to a gas. ANSWER: Intermolecular forces Back

6. States of Matter – 40 Points QUESTION: This state of matter will take the volume of its container ANSWER: Gas Back

7. States of Matter – 50 Points QUESTION: Giving the particles of a gas even more energy can sometimes lead to the state change called ionization, in which the gas will become a _______________. ANSWER: Plasma Back

8. Interpreting Graphs– 10 Points QUESTION: Which part of the graph represents the substance in a liquid state. ANSWER: Between C and D Back

9. Interpreting Graphs– 20 Points QUESTION: This part of the graph represents the substance freezing. ANSWER: Between D and E Back

10. Interpreting Graphs– 30 Points QUESTION: Approximately what temperature is the freezing point of the substance? ANSWER: 1500 degrees C Back

11. Interpreting Graphs– 40 Points QUESTION: What would the graph of a substance that sublimes look like? ANSWER: Back

12. Interpreting Graphs– 50 Points QUESTION: Which part of the graph shows the kinetic energy of the particles in this substance decreasing? ANSWER: None! It is only increasing in this graph. Back

13. State Changes– 10 Points QUESTION: In this state change a solid turns into a liquid. ANSWER: Melting Back

14. State Changes– 20 Points QUESTION: Liquid lava turning into solid rock, basalt. ANSWER: Freezing Back

15. State Changes– 30 Points QUESTION: In this state change, particles of a relatively cool liquid become a gas at the surface of the liquid. ANSWER: Evaporation Back

16. State Changes– 40 Points QUESTION: What change in state is occurring at section BC? What is happening to the kinetic energy of the particles in that section? ANSWER: Condensation. KE remains the same. Back

17. State Changes– 50 Points QUESTION: An extremely low temperature change in state can result in this state of matter: it is an excellent electrical conductor and can sometimes slow down light. ANSWER: A Bose-Einstein condensate Back

18. Examples– 10 Points QUESTION: Which state of matter is the most dense? ANSWER: Solids Back

19. Examples– 20 Points QUESTION: When you put cheese in the microwave and it comes out as a puddle, it is an example of what? ANSWER: Melting Back

20. Examples– 30 Points QUESTION: Frost crystals forming on a freezer are in a ________ state, and formed by _____________. ANSWER: Solid. Deposition. Back

21. Examples– 40 Points QUESTION: 1.Heating soup broth until it is hot and bubbling. 2. Watching a drop of water disappear from the floor at room temperature These are examples of____________ ANSWER: Vaporization Back

22. Examples– 50 Points QUESTION: The most common state of matter in the universe is __________. ANSWER: Plasma Back

23. Random– 10 Points QUESTION: The measure of the average kinetic energy in the particles of a substance ANSWER: Temperature Back

24. Random– 20 Points QUESTION: When something freezes, what happens to the energy of the particles? ANSWER: Losing energy/ energy decreases (exothermic) Back

25. Random– 30 Points QUESTION: The energy an object has due to its motion. ANSWER: Kinetic energy Back

26. Random– 40 Points QUESTION: The total kinetic and potential energy in a substance ANSWER: Thermal energy. Back

27. Random– 50 Points QUESTION: As the particles in a substance separate, this means an increase in __________ ANSWER: Potential energy Back