( ( ( ( Take ( a ( loose magnet ) ) ) and ) ( ( ( place it ) ( on ( ( the magnet ) ( on ( a post ) ) ) ) ) ( so ( ( the ( two magnets ) ) ( are attracting ) ) ) ) ) . )
(ROOT (S (VP (VP (VB Take) (NP (DT a) (JJ loose) (NN magnet))) (CC and) (VP (VB place) (NP (PRP it)) (PP (IN on) (NP (NP (DT the) (NN magnet)) (PP (IN on) (NP (DT a) (NN post))))) (SBAR (IN so) (S (NP (DT the) (CD two) (NNS magnets)) (VP (VBP are) (VP (VBG attracting))))))) (. .)))
Take a loose magnet and place it on the magnet on a post so the two magnets are attracting.
(ROOT (S (S (VP (VBG Increasing) (NP (NP (DT the) (NN distance)) (PP (IN between) (NP (DT the) (CD two) (NNS magnets)))))) (VP (MD will) (VP (VB cause) (NP (DT a) (NN decrease)) (PP (IN in) (NP (NP (DT the) (NN force)) (PP (IN of) (NP (NP (NN attraction)) (PP (IN between) (NP (CD two) (NNS magnets))))))))) (. .)))
Increasing the distance between the two magnets will cause a decrease in the force of attraction between two magnets.