Question

A student wants to know if the effect of gravity is the same on all objects. She follows these steps:

Drop a 5-gram ball, a 10-gram ball, and a 12-gram ball from a height of 10 meters.
Record how long it takes for each object to hit the ground.
?
Which step should be next?

(1 point)

Perform a second trial.

Drop the balls from a different height.

Measure the mass of the balls again.

Choose new balls.
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Answer 1

Perform a second trial.

Reason: repeating the drop gives a replicate measurement to reduce random errors and check consistency before drawing conclusions about whether gravity affects the balls the same.