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May 3, 2025 15 mins
Tercer episodio del tema dos, donde hablaremos de cómo medir la longitud y el tiempo. Para la longitud veremos la cinta métrica, la regla, el pie de rey y el micrómetro. Para el tiempo usaremos un cronómetro. Introducimos el concepto de error cero, cuando el instrumento utilizado nos indica una lectura sin estar midiendo nada. Terminamos con dos ejemplos de medidas de tiempo: por un lado el período de oscilación de una bola en un péndulo, y por otro lado el tiempo de caída libre de un objeto entre dos puntos determinados. 
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