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

Question

1. Drop a 5-gram ball, a 10 gram ball and 12 gram from a height of 10 meters.
2. Record how long it takes for each object to hit the ground.
3. ?

Which step should be next?
(1 point)

A. measure the mass of the balls again.
B. Perform a second trial
C. Choose new balls.
D. Drop the balls from a different height

Answer 1

B. Perform a second trial