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8. At higher temperatures _______.

A. particles in an object have less energy
B. particles in an object move faster
C. a gas contracts
D. particles vibrate slowly

1 Answer

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Answer:

B. particles in an object move faster

Step-by-step explanation:

At higher temperatures, particles in an object moves faster.

Temperature is the degree of hotness or coldness of a body.

  • At higher temperature, the substance is very hot.
  • Temperature is related to the heat energy content of a body
  • As the temperature increases, the average kinetic energy of the particles of system increases more and more.
  • This is in compliance with the kinetic molecular theory of matter.
  • Therefore, at higher temperatures, particles in an object move faster.
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