1. A. air, B. gasoline, C. copper wire
QUESTION:
For which of the following are the atoms, on average, farthest from one another?
A. air, B. gasoline, C. copper wire
Matter made up of tiny particles (atoms and/or molecules). Molecules are groups of atoms.
Gas:
particles very far apart -- explains why a gas is easily compressed;
Solid and Liquid:
particles very close together; explains why solids and liquids are not easily compressed
For which of the following are the atoms, on average, farthest from one another?
A. air, B. gasoline, C. copper wire
PAUSE
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All matter is made up of tiny particles called atoms. Two or more atoms bound together are called molecules.
The particles are farthest from each other in a gas, and are much closer together in liquids and solids.
This explains why gases are easily compressed, while solids and liquids are not.
The correct answer is, therefore, A. Air is a gas.
Whereas Gasoline is a liquid.
And Copper wire is a solid.
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2. Video ID: © 2008, Project VALUE (Video Assessment Library for Undergraduate Education), Department of Physical Sciences Nicholls State University Author: Glenn V. Lo Narrator: Funded by Louisiana Board of Regents Contract No. LA-DL-SELECT-13-07/08