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Questions and Answers
What is matter?
What is matter?
- Only solid objects
- Only liquids
- Only gases
- Anything that has mass and takes up space (correct)
What are the three fundamental states of matter?
What are the three fundamental states of matter?
Solid, liquid, and gas
A solid has a definite shape and volume.
A solid has a definite shape and volume.
True (A)
What characterizes a liquid?
What characterizes a liquid?
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Gases have a definite volume and shape.
Gases have a definite volume and shape.
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How does heat affect matter?
How does heat affect matter?
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What causes matter to change states?
What causes matter to change states?
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Study Notes
States of Matter
- Matter consists of anything that possesses mass and occupies space.
- There are three primary states of matter: solid, liquid, and gas.
- Changes in states of matter occur due to the addition or removal of energy.
Solid
- Solids have a definite shape and volume.
- Molecules in solids are tightly packed in a structured pattern, only able to vibrate in place.
Liquid
- Liquids possess a definite volume but lack a fixed shape.
- Molecules in liquids are more loosely packed, allowing them to flow past one another.
Gas
- Gases have neither a definite shape nor a fixed volume.
- Molecules in gases are spaced far apart and can move freely in any direction.
Heat and Matter
- Adding heat to a substance causes its particles to move more rapidly.
- Removing heat from a substance leads to slower particle movement.
- Heat energy transfers from areas of higher temperature to areas of lower temperature.
State Changes
- Changes in the state of matter occur due to variations in energy levels affecting particle movement.
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