Question

Billy has in his lab report for a lab involving bouncing tennis balls his teacher marks him down because he only dropped the tennis ball on the ground once why should he have repeated his experiment by doing many trials​

Answer 1

Answer: If you repeat an experiment multiple times, you get better, thorough, answers.

Explanation: Rather than Billy doing it once, he should have done it multiple times to get the results he needed. Especially with science, there are a lot of mistakes and things we can’t control: It is very important that we try over and over again. The wind, the time, the angle, anything can affect and ruin data. But, if we continue to gather it and be precise as possible, the results won’t always be 100% inaccurate and can at least be estimated upon.