Chapter 07 - Particulate Model of Matter

Particles of all matter are in constant random motion.

• True
• False

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These particles are held together be very strong forces of attraction

• Solid

• Liquid

• Gas

It has no definite shape or volume

• Solid

• Liquid

• Gas

Their particles are packed closely together without a fixed regular pattern

• Solid

• Liquid

• Gas

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It can be compressed

• Solid
• Liquid
• Gas

Its particles are held together by weak forces of attraction and are able to move freely over long distances

• Solid
• Liquid
• Gas

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When matter is heated, the 
particles _______ energy

• Gain
• Lose

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When matter is ________, the 
particles lose energy

• Heated
• Cooled

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When particles are heated, they ______

• Expand

• Contract

• Move faster

• Slow down

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When particles are cooled, they ______

• Expand

• Contract

• Move faster

• Slow down

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