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Newton's law: acceleration as a function of force with  Cobra SMARTsense

Newton's law: acceleration as a function of force with Cobra SMARTsense

Item no.: P1004269

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Principle

The measuring carriage on the roadway is uniformly accelerated by a mass which is connected to the carriage via a deflection roller with a thread and generates a force in the earth's gravitational field. The concrete value of the acceleration is calculated from the tensile force and the accelerated carriage mass from the 2nd Newtonian Axiom.
Benefits

  • Especially understandable and didactically prepared description of the experiment (relevance to everyday life, etc.) including protocol questions.
  • Future-oriented teaching: Integration into digital science lessons with tablets or smartphones.
  • Increased motivation of students by using the intuitive measureAPP.
  • Increased media competence.

Tasks

  • Pupils use a weight to accelerate a car of known mass on a roadway and measure the time it takes the car to travel a distance of 50 cm. They increase the weight of the train gradually from 1 g to 5 g.
  • The students evaluate the measured data and obtain a linear relationship between force and acceleration from which they determine the gradient.

Learning objectives
In this experiment, the students are to be led experimentally towards the simplified formulation of the 2nd Newtonian axiom.

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