The educational resource shows a visual about the free fall in vacuum: whatever their shape and mass, all bodies fall with the same speed in a vacuum.

Concep of doppler effect.

Didactic unit about Rectilinear Movement for 4th year of compulsory secondary education. Uniform Movement (I). Uniform Movement (II). Uniformly Accelerated Motion (I). Uniformly Accelerated Motion (II).

Introductory Kinematics teaching unit for 2nd year of Compulsory Secondary Education (ESO) (MEC). Different types of movement. Uniform motion. Accelerated motions. Representations of Movements.