You can make a ramp. In scientific terms, it would be an inclined plain. You can roll balls and drive wheelchairs up and down ramps.
no
a machine that is simple to use
That isn't possible, not with a simple machine and not with a complicated machine, since otherwise, conservation of energy would be violated.
a knife
I don’t know
I don’t know
We use simple machines
a lot of people use the simple machine .
That would be a pulley.
a machine is use in building
An inclined plane
A simple machine that was used my Egyptians would be a lever or any type of lever that would help them to lift heavy materials while building the pyramids.