The thermal energy in a hot iron flows into a shirt. what can possibly be said about this situation?

Temperature is related to, but not the same as, energy. Can you explain how they are similar and different? Watch the videos and record notes in your science notebook using a graphic organizer similar to the one shown.

The Science Asylum (Designer). (2015.) What is Energy Really? [Video file]. https://www.youtube.com/watch?v=jCrOtF7T4HE

The Science Asylum (Designer). (2015.) What Exactly is Temperature? [Video file]. https://www.youtube.com/watch?v=2xaIQjmE5VI

When you heat a substance from below its freezing point to above its boiling point, its temperature increases overall, but not steadily. Look at the graph below. This model heat curve shows the typical pattern: As thermal energy is added to any substance, the temperature increases then levels off, increases again, then levels off, and finally increases at the end. Does this seem strange to you? What’s going on?

Copy the generic heating curve into your science notebook. Using your knowledge of kinetic energy, potential energy, thermal energy, and temperature, label the following: 

  • Segments of the graph where the kinetic energy of the molecules is changing
  • Segments of the graph where only the potential energy of the molecules is changing 

Watch the video to check your answers.

Kent’s Chemistry Page (Designer). (2012.) Heating Curve Basics [Video file]. https://www.youtube.com/watch?v=YG77v1PwQNM