Use the table of criteria for an investigation to answer the question. Object To Be Dropped Drop Height (meters) 10-gram ball 5 5-gram ball 8 18-gram ball 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) Responses by dropping the balls from the same height by dropping the balls from the same height by measuring the circumference of the balls by measuring the circumference of the balls by finding balls made from different materials by finding balls made from different materials by using balls that are the same mass

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, rather than the height from which the balls are dropped.