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Questions and Answers
What happens when a substance is heated?
What happens when a substance is heated?
- The atoms/molecules themselves expand
- The atoms/molecules lose energy and move slower
- The atoms/molecules gain energy and move faster (correct)
- The volume of the substance decreases
Which statement about temperature is true?
Which statement about temperature is true?
- Temperature is a measurement of the average speed of atoms/molecules (correct)
- Higher temperature means slower moving atoms/molecules
- Temperature is a measurement of the size of atoms/molecules
- Lower temperature means atoms/molecules are not moving
What happens when a substance is cooled?
What happens when a substance is cooled?
- The atoms/molecules gain energy and move faster
- The atoms/molecules spread further apart
- The atoms/molecules lose energy and move slower (correct)
- The volume of the substance increases
How do gaseous atoms/molecules travel?
How do gaseous atoms/molecules travel?
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How can we detect an odor in the air?
How can we detect an odor in the air?
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