The main issue with Marcus's experiment's design is that the drops are not repeated. Repeating the drops ensures that the results are reliable and not due to random variations in timing. While it could also be beneficial to include objects of different shapes or masses, the lack of repetitions is the most significant flaw in obtaining consistent and valid results.
Marcus wants to test the effect of gravity on objects with different masses. He drops two footballs from a first-floor window, a second-floor window, and a third-floor window. In each case, he times how long it takes the footballs to reach the ground. What is wrong with his experiment’s design?
Responses
It does not include objects with different shapes.
The windows are not high enough to show significant differences in drop times.
The drops are not repeated.
It does not include objects with different masses.
1 answer