Topic 8: Energy production

Essential idea:

The constant need for new energy sources implies decisions that may have a serious effect on the environment. The finite quantity of fossil fuels and their implication in global warming has led to the development of alternative sources of energy. This continues to be an area of rapidly changing technological innovation.

Nature of science:

Risks and problem-solving: Since early times mankind understood the vital role of harnessing energy and large-scale production of electricity has impacted all levels of society. Processes where energy is transformed require holistic approaches that involve many areas of knowledge. Research and development of alternative energy sources has lacked support in some countries for economic and political reasons. Scientists, however, have continued to collaborate and share new technologies that can reduce our dependence on non-renewable energy sources. (4.8)

Understandings:

Applications and skills

Guidance

Data Booklet reference

• s = vt
• There is a "Δx" not for every distance s.

International-mindedness

Theory of knowledge

Utilization

Aims

• Aim 1:
• Aim 2:

Essential idea:

For simplified modelling purposes the Earth can be treated as a black-body radiator and the atmosphere treated as a grey-body.

Nature of science:

Simple and complex modelling: The kinetic theory of gases is a simple mathematical model that produces a good approximation of the behaviour of real gases. Scientists are also attempting to model the Earth’s climate, which is a far more complex system. Advances in data availability and the ability to include more processes in the models together with continued testing and scientific debate on the various models will improve the ability to predict climate change more accurately. (1.12)

Understandings:

Applications and skills

Guidance

Data Booklet reference

• s = vt
• There is a "Δx" not for every distance s.

International-mindedness

Theory of knowledge

Utilization

Aims

• Aim 1:
• Aim 2: