Physical Science Chapter 8: Energy

Vocabulary Words	Objective Questions
8-1 What is energy?	page 228
energy kinetic energy potential energy thermal energy chemical energy radiant energy electical energy nuclear energy	Give several examples of energy. How does kinetic energy relate to.. speed? mass? What does potential energy depend on? What are the five forms of energy?
8-2  Energy Transformation	page 233
law of conservation of energy generator turbine	In the world around you, what is happening to energy?  What does this cause? Can energy be lost? Why? Why can't we convert all the potential (chemical) energy into kinetic energy? List some common energy transformations. How does thermal energy move? From where does most of our electricity come?
8-3  Sources of Energy	page 241
nonrenewable resource renewable resource alternative resource inexhaustible resource photovoltaic fossil fuels hydroelectricity solar energy geothermal energy heat pump tidal energy	Where does the energy from our electrical appliance go? What are the problems associated with fossil fuels and nuclear energy? What are some alternative energy sources? List at least five. Why don't we use more alternative sources of energy? What can you do to conserve energy? List at least five.