... then hang weights a certain distance from the end of the cantilever and increase them steadily. I will measure the sag by using a ruler after every weight is put on. I will repeat each weight five times to ensure that I get accurate results and can then calculate an average. I will then record my results in an appropriate table. For safety reasons, I will need to wear safety goggles to protect my eyes if for example the cantilever breaks and equipment is slung across the room. Prediction I predict that the sag will increase when I increase the load although the greater the sag becomes more weight will be needed to increase the sag the same distance. This is because gravity will pull down on the load putting the top of the cantilever under tension. This is when the molecules are stretched apart; the greater the stretch the greater the ...

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