: Conservation is achieved by reducing energy needs (e.g., turning off lights) and increasing the efficiency of energy use (e.g., using fuel-efficient cars). Quick Review Table Resource Type Key Characteristic Nonrenewable Coal, Oil, Natural Gas, Uranium Limited supply; high pollution Renewable Wind, Solar, Hydroelectric, Geothermal Replenished quickly; lower pollution Common Worksheet Questions
Energy obtained from flowing water. It is most efficient in steep sections of a river where water moves faster.
Can be replaced in a relatively short period of time (e.g., solar, wind, hydroelectric, geothermal, and biomass). Section 15.3 Answer Key (Common Questions) 1. Classify the following as Renewable or Nonrenewable: Coal, Oil, Natural Gas: Nonrenewable (Fossil Fuels). Uranium: Nonrenewable (Nuclear fuel). Solar, Wind, Water: Renewable. 2. Why are coal, oil, and natural gas called fossil fuels?
Used in nuclear fission, also classified as nonrenewable. Renewable Resources section 15.3 energy resources answer key pdf
Water pumped below ground is converted to steam by Earth's internal heat. Wind: Kinetic energy of moving air turns a turbine.
This statement is true for several critical reasons.
Sunlight converted into usable heat or electricity using photovoltaic cells. Geothermal: Heat drawn from deep within Earth’s crust. : Conservation is achieved by reducing energy needs (e
By reviewing the answer key for Section 15.3 Energy Resources PDF, you should have a better understanding of the following key takeaways:
Nonrenewable energy resources exist in limited amounts. Once used up, they cannot be replaced by natural processes within a human lifespan.
What is an energy resource that can be replaced in a relatively short period of time? Answer: Renewable energy resource. Can be replaced in a relatively short period of time (e
These include coal, oil (petroleum), and natural gas. They formed from the remains of ancient organisms under intense heat and pressure.
A core part of this chapter is understanding how one form of energy converts to another: Kinetic energy →right arrow Turbine rotation →right arrow Electrical energy. Solar Power: Light energy →right arrow Photovoltaic cells →right arrow Electrical energy. Biomass: Chemical energy →right arrow Thermal energy →right arrow →right arrow Kinetic energy →right arrow Electrical energy. True or False Review (Common Quiz Questions)