Which of the following experiments would test whether a lighter or heavier object would hit the ground first when dropped from the same height ?

O Measure the time it takes for two objects of identical weight but different sizes to hit the ground. Both dropped from the same height.
O Measure the time it takes for a light, flat object released with the flat side down to hit the ground. Then measure the time it takes for a spherical, lightweight object to hit the ground. Both dropped from the same height.
• Measure the time it takes for a flat, heavy object falling with the flat side down to hit the ground. Then measure the time it takes for a spherical, lightweight object to hit the ground. Both dropped from the same height.
• Measure the time it takes for two objects of same size but different weights to hit the ground. Both dropped from the same height.

The correct experiment that would test whether a lighter or heavier object would hit the ground first when dropped from the same height is:

- Measure the time it takes for two objects of same size but different weights to hit the ground. Both dropped from the same height.

....... because you want to reduce the possible effect of air resistance on the drop time for objects different shapes and sizes.

Yes, that is correct! By using objects of the same size but different weights, we can reduce the potential impact of air resistance on the results. This allows us to focus specifically on the influence of weight on the time it takes for the objects to hit the ground.