Problem 1: Seismic Waves
Seismic waves that cause earthquakes occur in several forms. P waves travel fastest, have a push-pull motion, and are usually not noticed, while S waves vibrate the ground and are slower.
Which of these waves is a transverse wave and which is longitudinal?
Which causes damage to buildings and why?
Problem 2: Wind Power
Wind power is considered to be a clean method of producing electricity.
Explain briefly how wind generators operate to produce AC electricity using the example of Faraday's generator on page 116 and explanations you find through your own research.