Question

A team of students performs an experiment to test the effect of gravity on different objects with the same mass. They measure how long it takes the objects to fall from the top of the school's bleachers. How can they insure they get accurate data? (1 point)
• by dropping the objects in random order
O by repeating the experiment several times
• by using a high-tech stopwatch
O by dropping all the objects at once

Answer 1

By repeating the experiment several times — this reduces random error and lets them average the results for more accurate, reliable data.