A lever is any kind of rigid bar that sits on a pivot point or fulcrum and rotates about that point. It may be used to move a heavy object with a force.
What do Machines do? Do they allow one to do more work? What do Machines do? Do they allow one to do more work? Not really, at best they make completing.
Science in Daily Life: Biomechanics Alyssa Ascare Elena Banegas Nunez Engineering Ambassadors Department of Biomedical and Chemical Engineering Worcester.
SIMPLE MACHINES. INVESTIGATION 1 SIMPLE MACHINES.
