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Intro Matter Test 2
Intro to Matter
| Question | Answer |
|---|---|
| Volume formula for regularly shaped solid objects | volume = length x width x height |
| Volume for irregularly shaped solid objects | measuring using displacement |
| measure volume of an apple | submerge the apple in a container and meausure the volume of water the apple displaces |
| density | m/v |
| liquid | definite volume, no definite shape, atoms slide past each other at medium speed |
| solid | definite volume and definite shape, atoms are closest to each other |
| gas | no definite volume and no definite shape; atoms move very fast and are spread apart |
| change of state | change of a substance from one physical form to another |
| melting | change of state when a solid becomes a liquid |
| freezing | change of state when a liquid becomes a solid |
| evaporation | change of state when liquid becomes a gas |
| condensation | change of state when a gas becomes a liquid |
| sublimation | change of state when solid becomes a gas |
| endothermic | energy is gained by a substance as it changes state; example melting |