Object To Be Dropped

Question

Drop Height (meters)
10-gram ball
5-gram ball
18-gram ball
5
8
10
A student designs an investigation to study the effect of gravity on objects on Earth. He will use the criteria shown. How can the student improve the investigation?
(1 point)
• by dropping the balls from the same height
O by using balls that are the same mass
• by finding balls made from different materials
• by measuring the circumference of the balls

Answer 1

The student can improve the investigation by dropping the balls from the same height. This will ensure that the only variable being tested is the effect of gravity on the balls.