University:
Felician University
Course:
PHYS-355 | Advanced Topics in Physics
Academic year:

2024
Views:

446

Pages:

4
Author:

Camilla House

Phase Change quizlet- Gizmo packet 1. What phase do the molecules move freely? Gas (air) 2. What phase do the molecules take the shape of their container? Liquid (water) 3. What phase are the molecules held in a define shape? Solid (ice) 4. What temp. does wa- 0°C ter freeze at? (°C) 5. What temp. does ice 0°C melt? (°C) 6. What temp. does wa- 100°C ter boil? (°C) 7. Altitude Vertical distance, or elevation, above sea level, The higher the altitude the less pressure. 8. Boil Change from liquid to a gas 9. Boiling point The temp. at which roaring boiling occurs. -Sea level= 100°C (212°F) boiling point -Water boils lower temps. at higher altitudes because air pressure is lower there*** 10. Freeze Change from liquid to a solid 11. Freezing point the temp. at which freezing occurs. -Sea level= 0°C (32°F) 12. A phase in which matter has no defi- Gas 1/4 nite shape or volume, moves freely 13. A phase in which mat- liquid ter has definite volume but no definite shape. 14. Melt Change from solid to a liquid 15. Melting point The temp. at which melting occurs -Sea level: 0°C (°F) melting point 16. Phase A state of matter with certain physical properties. -Solid, liquid, and gas phases occur naturally on Earth. -Plasma is a phase found in stars 17. A phase in which matter has a definite shape and definite volume. Solids 18. What are inside bub- Invisable water and gas bles 19. What are bubbles? Bubbles are invisible forms of water. Heat energy makes water into gas bubbles as phase change occurs. The heat lifts the gas bubbles into the air and pops at the surface of the water releasing water into the air. 20. Why does phase change occur? 21. What are the 4 states 1. Liquid of matter? 2. Gaseous 3. Solid 4. Plasmas 2/4 22. What is matter made Tiny particles called atoms up of? 23. List 3 ways of show- -Blow up a balloon ing how gas is matter -Blow up a soccer ball -Blow up a pool toy Blow up= pump air into 24. What atom moves, Fast (lots of energy, moves quickly, bounces around) Gas 25. What atom moves, Liquids Medium (less energy, slides past each other) 26. What atom moves, Solids Slow (even less energy, only vibrating) 27. How can we identify -Temperature matter by its charac- -Hardness teristics? -Color -Length 28. No definite shape Plasma 29. How is temperaThe temperature allows the phase changes to hapture related to phase pen, if the temp is not at a certain point then a stage changes? can not happen. 30. Why do phase changes occur? They occur because the temperature changes the way a molecule moves and changes state of the water. 31. How does altitude af- Altitude affects phase change because the higher up fect phase changes? you are the lower boiling point temp you will have. 3/4 there is less pressure up higher making cooking something in water take longer, 32. How are pressure and As temperature increases it makes the molecules temperature related? move faster increasing the pressure 33. What is Condensation When a cold surface meets with warm air condensation occurs making small water droplets on the cold surface 4/4