lever pulley inclined plane wheel and axle
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Scientists wonder how the Egyptian pyramids were built. They think that the huge blocks of stone may have been put into place by pushing them up a sloping pathway. The pathway is which type of simple machine?
Possibilities:
- lever
- pulley
- inclined plane
- wheel and axle

inclined plane