a machine is a device that can make work easier. there are 6 simple machines: a lever is a bar that pivots…
a machine is a device that can make work easier. there are 6 simple machines: a lever is a bar that pivots around a fulcrum (the pivot point). an inclined plane is a flat surface that slopes. a wheel and axle is a wheel attached to a smaller axle. these two parts rotate together to create a simple machine. a wedge is two inclined planes back to back. a pulley is a grooved wheel with a cable wrapped around it. a screw is an inclined plane wrapped around a post. a compound machine is a device made up of two or more simple machines. choose the correct answer. what is a pulley? a grooved wheel with a cable wrapped around it two inclined planes back to back an inclined plane wrapped around a post