1. a. wedges were used to split the blocks. b. to move the blocks flat bottomed boats were used to transport the blocks. c. to put the blocks into place the slaves had to build ramps.
2. a. Friction was reduced when the blocs were moved by using ramps and rollers to move the blocks so it won't be touching a rough surface. b. the invention is the pulley system it would have been easier because it would lift the block and it won't be touching the ground.
3.
4. They are used in many things like axes and lifters and scissors, also they are used in scissors since the two wedges are connected by a lever to move them.
5. The last block which was weighing 250 000N needed the most force and power to be lifted since the workers had to go up to 140m with a block weighing 250 000N.
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