Ureneck-pnhs-intro to I.S. vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is the state of matter in which materials have a definite shape and volume? | solid
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| Which state of matter has a definite volume but not a definite shape? | Liquid
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| Which state of matter has neither a definite shape nor volume? | gas
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| What is the energy an object has due to its motion?` | Kinetic Energy
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| What is the result of a force distributed over an area? | pressure
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| What is a temperature of 0 Kelvins called? | absolute zero
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| What states that the volume of gas is directly proportional to its temperature in kelvins as long as the pressrue and numbers of gas particles are constant? | Charle's law
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| What states that the volume of a gas is inversely proportional to its pressure if the temperature and the number of particles are constant? | Boyle's law
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| What is a reversible physical change that occurs when a substance changes from one state of matter to another? | phase change
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| What happens during an endothermic change? | The system absorbs energy from its surroundings
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| What happens during an exothermic change? | The system releases energy to its surroundings
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| What happens during vaporization? | A substance changes from a liquid into a gas
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| What is the process that changes a substance from a liquid to a gas at temperatures below boiling point? | evaporation
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| What causes vapor pressure? | The collisions of water vapor and the walls of the container
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| What is condensation? | The phase change in which a substance changes from a gas or vapor to a liquid.
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| What happens in sublimation? | A substance changes from a solid to a gas or vapor without changing to a liquid first.
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| What happens in deposition? | A gas or vapor changes directly into a solid without first changing to a liquid.
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| What is the heat of fusion? | The amount of energy absorbed as a substance melts.
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