Energy Defined

PBS video covering different types of energy and the need for alternative energy sources.

Related Topics:
1. Energy is a physical quantity that follows precise natural laws.
2. Physical processes on Earth are the result of energy flow through the Earth system.
3. Biological processes depend on energy flow through the Earth system.
5. Energy decisions are influenced by economic, political, environmental, and social factors.
6. The amount of energy used by human society depends on many factors.
4. Various sources of energy are used to power human activities.

Associated Grade Levels:

Related Sub-Topics

3.6 Humans are part of Earth’s ecosystems and influence energy flow through these systems.

6.8 Amount of energy used can be calculated and monitored.

4.5 Humans generate electricity in multiple ways.

2.5 Movement of matter between reservoirs is driven by Earth’s sources of energy.

1.1 Energy is a quantity that is transferred from system to system.

5.1 Decisions concerning the use of energy resources are made at many levels.

1.5 Energy comes in different forms and can be divided into categories.

4.1 Humans transfer and transform energy from the environment into forms useful for human endeavors

1.8 Power is a measure of energy transfer rate.

3.2 Food is a biofuel used by organisms to acquire energy for internal living processes.

4.2 Humans use of energy is subject to limits and constraints.

6.1 Conservation of energy has two very different meanings.

6.7 Products and services carry with them embedded energy.

2.7 The effects of changes in Earth’s energy system are often not immediately apparent.

4.7 Different sources of energy and different ways energy is transformed, transported, and stored.

4.4 Humans transport energy from place to place.