Longitudinal wave concept

Concept of harmonics

Diffraction concept

Concept of interference

Concept of Absorption

Didactic unit about optics for 4 º compulsory secondary education . Light as a wave. Reflection. Refraction. An optical device: a telescope. Light as a particle.

Didactic unit about waves and undulatory phenomena for 4 º compulsory secondary education course. What is a harmonic vibration? What is a wave? Superposition of waves. Phenomenon of diffraction. Other properties of waves.