Task 22

Materials and tools for a working group:

inclined plane, toy truck

In the previous task, the teacher pointed out that if pupils want to determine whether the speed of loaded and non-loaded cars on the inclined plane is affected by the length of the board, they will have to use two unevenly long boards equally inclined. Pupils are addressing the research question: Does the angle of the inclined board influence an acceleration of the object that moves on it?

Pupils create predictions. The picture also shows how they can verify their predictions. Various large angles can be obtained by placing multiple books under the same board. In this case, however, they must use two identical cars, both without load or with the same load, when verifying. They will verify their predictions by repeating the observation several times. They compare the verification with the prediction and conclude the investigation.