Richard Aldridge 10 Gordon
An experiment to find out how a number of pulleys affect the effort needed to lift a load of 1newton (100g)
Aim
To find out how a number of pulleys affect the effort needed to lift a load of 1 Newton (100g).
Hypothesis
I predict that as the number of pulleys we use increases, the effort needed to lift the pulley will decrease.
Fair test
There are many factors that could affect the results in this experiment all of which will have to be kept under control, if they were not kept under control then the results would not be fair. We will keep the test fair by keeping the load the same (1 Newton), by keeping the size of the pulley the same, by keeping the material the pulley is made from the same and the thickness of the rope the same.