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.
