Reliability - GCSE Physics Definition

Reliability in physics refers to how consistently a measurement or experiment produces the same results when repeated under the same conditions. Imagine if you weighed yourself on a scale and got a different number every time; the scale would not be reliable. In science experiments, reliability is important because it helps scientists know they can trust their results. Reliable experiments have controls and are done multiple times to check for consistency. If an experiment gives similar results each time, it's considered reliable, which means you can depend on it to be accurate.