3rd Six Weeks (Week 3) Introduction to Energy

Introduction to Energy Song

Heat and Temperature Video 

Kinetic & Potential Energy: The Law of Conservation of Energy

·         Introduction to Energy o   What is energy? o   Compare kinetic and potential energy ·         Can objects have potential & kinetic energy at the same time? ·         Discuss gravitational potential energy; give examples ·         Describe mechanical energy o   Is the sum of potential and kinetic energy: o   Can be made up entirely of potential, entirely of kinetic, or both.

·         Discuss the different forms energy can take o   Mechanical energy o   Sound energy o   Electromagnetic energy o   Chemical energy o   Thermal energy o   Nuclear energy o   Electrical energy ·          Provide examples of different forms of energy.

·         What is: The Law of Conservation of Energy o   Energy cannot be created or destroyed, only change into a different form. ·         What is an energy transformation? o   Discuss energy transformations and demonstrate examples of these transformations.

Thermal Energy and Heat:

·         How is temperature related to kinetic energy? o   Explain and discuss the kinetic theory of matter. o   Compare the speeds of particles in solids, liquids, and gases. ·         Review Kinetic theory of matter o   Think fast Questions §  Which of the following has particles with a higher average kinetic energy? ·         Present examples: Steam or ice water, etc.. §  Which of the following has particles with a lower average kinetic energy? ·         Present examples: Snow or water, etc..

·         Define temperature, degree, and thermometer. o   Students must create a word triangle for each of the vocabulary terms in their Science Journal. ·         Relate temperature to kinetic energy of particles. o   High Temp. = higher kinetic energy o   Low Temp. = lower kinetic energy §  Due to particle movement ·         Measure temperature using different scales. o   Fahrenheit o   Celsius o   Kelvin ·

·         Thermal Energy & Heat  ·         What is the relationship between heat and temperature? o   Define: Thermal Energy & Heat §  Discuss and differentiate between thermal energy, temperature, & heat. ·         Small groups activity: Heat Race: §  Give each group a zipped plastic bag with an ice cube inside.  Instruct groups to agree on a way to melt the ice cube without opening the bag. They can use anything in the room to help: sunlight, warm air, body heat, etc… §  After all groups have finished, discuss how long each method took.