Đề thi môn Tích hợp vào lớp 10 năm 2023 TPHCM
Use the following information to answer question 19 and 20.
A student investigates the motion of different falling masses by measuring the time taken for a toy parachute to fall from a window (Figure 4). The method is as following:
- measure the mass of the toy parachute
- drop the toy parachute from the window
- repeat the experiment with additional mass added to the toy parachute.
- continue to add mass up to a maximum of six different masses.
Q19. State the independent variable in this investigation.




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