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Observation is a fundamental stage of scientists' work. To observe is to notice regularity, anomalous behaviour, etc. For observations to be successful, it is necessary first to establish what you want to observe. To observe is different from "to look". Carefully observe the movement of these cars.
Do they cover the same distance each second? Do they always move at the
same speed? Do they accelerate, brake or maintain a constant velocity?
Do they have the same initial velocity? Observe as much as you can.
Then click on the control which appears in the image and answer the
questions. |
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