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HEAT ENERGY: THERMAL EXPANSIVITY

CONTENT

  1. The Concept of Heat and Temperature
  2. The Differences between Heat and Temperature
  3. The Kinetic Theory of Matter
  4. The Effects of Heat on Substances (Expansion, Vaporization)
  5. Using Kinetic Theory to Explain the Temperature of a Body
  6. Linear Expansion, Coefficient of Linear Expansivity
  7. Expansion in Liquids
  8. Applications of Expansion

 

The Concept of Heat and Temperature

Heat is a form of energy that moves from one point to the other due to temperature difference. When you dip one end of an iron rod into fire and hold the other end with your hand, this other end soon becomes hot because energy has flowed from the point dipped into the fire to this other end. This energy flow is what is known as heat. Temperature is a measure of how cold or hot a body is.

 

The Differences between Heat and Temperature

 

The Kinetic Theory of Matter

The kinetic theory of matter states that:

  1. Matter is made up of atoms and molecules.

Lesson tags: Physics Lesson Notes, Physics Objective Questions, SS1 Physics, SS1 Physics Evaluation Questions, SS1 Physics Evaluation Questions Second Term, SS1 Physics Objective Questions, SS1 Physics Objective Questions Second Term, SS1 Physics Second Term
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