In the experiment below, a researcher is testing the effect of effort distance of the
Diagrammatic questions:
slanted surface on the effort applied to lift up the load.
E
E.d. = 5 m
L.d.
E
E.d. =3 m
(b)
(a)
L
i.
What variables are involved in it?
ii. Which variables have to be controlled in this experiment?
iii. Sort out independent, dependent and controlled variables in it.
