simple machines

What is a simple machine with a round frame that turns around a central rod?

What simple machine can be used to split things apart and also hold open a door?

What simple machine has a wheel with a groove on it that keeps a rope in place?

Which type of simple machine would be found on the bottom of a wagon?

What is a simple machine that is used to hold things together by turning?

What is a flat surface that is tilted called?

What simple machine can lift heavy objects by pulling a rope?

What is the point where a lever pivots called?

What simple machine is used to change the direction of a force?

What is a tool that helps to lift or move heavy objects by using a lever?