19,879
edits
Changes
no edit summary
: [[Lever]]s are used to lift cars with a jack, pull out nails with a hammer and to break locks with a crowbar.
: A '''lever''' needs a long stiff rod and a pivot.
: A seesaw can work as a [[lever]]. If an adult sits close to the centre and a child sits at the far end, the child can lift the adult.
{| class="wikitable"