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Into. To I.S.
Pimental-PNHS-Intro. to I.S
| Question | Answer |
|---|---|
| If an object had a definite shape and a definite volume, what type of matter would it be? | A Solid. |
| What other types of matter are there? | Plasma and Bose-Einstein. |
| What is the kinetic theory of matter? | It states that all particles of matter are in constant motion. |
| What type of motion are in gas particles? | Gas particles are forever moving, but not at the same speed. They also do not have a set path. This allows the gas particles to take on any shape or size. |
| Describe the behavior of liquids. | Liquid particles are closely packed, unlike gas particles. Liquids can take on any shape since the particles can in a liquid can flow to new locations. The volume of a liquid is constant because forces of attraction keep the particles close together. |
| Why is vibration an important factor in the behavior of solids? | Solids have definite and a definite shape because the particles in a solid vibrate. |
| What factors affect the pressure of a gas? | Its temperature, its, and the number of its particles. |
| What happens kinetic energy in particles of gas and the temperature increases? | The particles move faster and collide more than usual. The faster-moving particles also hit off each with a much greater force. |
| What happens if you reduce the volume of a gas? | It increases the gases pressure. But only if the temperature and the number of particles are constant. |
| How will increasing the number of particles in a gas affect it? | There will be a greater number of collisions and greater pressure. |
| What does Charles's Law deal with? | Charles's Law says that the volume of a gas is proportional to its temperature in kelvins if the pressure and the number of particles in the gas are constant. |
| What does Boyle's Law deal with? | The volume of a gas is inversely proportional to its pressure if the temperature and number of particles in the gas are constant. |
| Explain a phase change. | A phase change can be reversible physical change that occurs when one substance changes from one state of matter to another. |
| Explain temperature and phase changes. | The temperature of a substance never changes during a phase change. This is one way to recognize a phase change. |
| Explain energy and phase changes. | Energy in a phase change can either be absorbed or released. There are two types of changes within an energy: endothermic and exothermic. |
| What is evaporation? | It is the process that changes a liquid to a gas at temperatures below the substance's boiling point. |
| Is the process of vaporization endothermic or exothermic? | It is an endothermic process. This is because it absorbs the energy. |
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Sburb1
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