The document describes 6 simple machines: an inclined plane, lever, screw, wedge, wheel and axle, and pulley. It explains what each machine is, examples of how it works, and how each one makes tasks easier to accomplish through mechanical advantage.
2. This is an inclined plane. An inclined plane is a surface connecting a lower level to a
higher level. It makes it easier to go up the ramp if you have wheels.
3. This simple machine is a lever. A level is a straight rod or bar that pivots on a point know
as a fulcrum. It lifts or moves loads. It makes it easier because it lifts heavy objects.
4. THIS simple machine is a screw. A inclined plane wrapped around a cylinder. It makes it
easier to hold things together.
5. Is a wedge. A wedge is two inclined planes join back to back. One example of a wedge is
door wedge It makes lt easier to hold the door.
6. This is a wheel and axle. A wheel and axle is a wheel with a rod through it. The real-world
examples of a wheel and axle that we show here are the wheels on a motorcycle and the
dumbbell. The wheels on the motorcycle make riding it easier by rolling so that the
motorcycle moves.
7. This is an example of a pulley. A pulley is a machine that uses wheels and
rope to raise, lower, or move a load. My real world example is a boy
pulling the line from the American flag to make it rise high into the air.