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Questions and Answers
Which phase of matter is water vapor?
What happens to the atoms of a solid compared to a liquid when energy is added?
How can we change a liquid into a solid?
Which phase of matter has molecules that are moving slowly and close together?
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What happens to the molecules in the ball filled with air when it is moved to a colder environment?
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What is the coldest temperature possible called?
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What is the purpose of carbonation in beverages like Coca-Cola?
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Which phase of matter holds its shape even when hit with a water balloon?
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Which phase of matter takes the shape of its container?
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What phase of matter is produced when a solid is boiling in a liquid?
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Which phase change requires the addition of pure energy?
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What is the purpose of a freezer?
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What is liquid nitrogen?
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What happens to molecules when they get closer and closer together?
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What are the three phases of matter?
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What happens to the atoms of a liquid when energy is added?
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What is the purpose of carbonation in beverages like Coca-Cola?
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Which phase of matter holds its shape even when hit with a water balloon?
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What phase of matter is produced when a solid is boiling in a liquid?
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What happens to the atoms of a solid compared to a liquid when energy is added?
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Which phase of matter has molecules that are moving very fast?
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What is the purpose of carbonation in beverages like Coca-Cola?
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What happens to the molecules in the ball filled with air when it is moved to a colder environment?
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Which phase change requires the addition of pure energy?
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What is the purpose of a freezer?
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What happens to the molecules in the ball filled with air when it is moved to a colder environment?
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What happens to the atoms of a solid compared to a liquid when energy is added?
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What is liquid nitrogen?
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Study Notes
Phases of Matter
- Water vapor is classified as a gas.
- Solids have atoms that are tightly packed and vibrate in place, whereas liquids have atoms that are close together but can move freely; when energy is added to solids, their atoms vibrate faster, potentially transforming into a liquid.
- Changing a liquid into a solid can be achieved through freezing, where energy is removed.
- Solids maintain a fixed shape even when subjected to external forces, such as being hit by a water balloon.
- Liquids take the shape of their container, filling it from the bottom up.
Energy and Molecular Movement
- Molecules in a ball filled with air will contract and move slower when moved to a colder environment due to decreased thermal energy.
- The coldest possible temperature is referred to as absolute zero, which is 0 Kelvin.
- Carbonation in beverages like Coca-Cola adds carbon dioxide gas, creating bubbles that enhance texture and taste.
Phase Changes and Energy
- Boiling a solid in a liquid produces a gas phase as vapor rises.
- Phase changes such as melting or boiling require the addition of pure energy (heat).
- Freezers serve the primary purpose of removing energy from food items, facilitating freeze processes to preserve them.
- Liquid nitrogen is a cryogenic liquid that remains at extremely low temperatures, often used for cooling and preservation.
Interactions of Molecules
- As molecules get closer together, their potential for motion decreases, leading to states of matter with increased density, such as solids from liquids.
- The three phases of matter commonly referenced are solid, liquid, and gas.
- Liquid atoms, similar to solid atoms, also become more mobile when energy is added, transitioning toward a gaseous state.
- Rapid molecular movement is characteristic of gases, where particles fill the available space and collide frequently.
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Description
Test your knowledge on pressure and molecular movement with this interactive quiz! Learn about how pressure affects the reading on a gauge and how the speed of molecules impacts pressure. Get ready to gauge your understanding of this fascinating topic!
