Question

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 an inclined plane?
two circles that orbit around an axis
a bar that pivots around a fulcrum (the pivot point)
a flat surface that slopes

Explanation:

To determine the correct answer, we refer to the left - hand text which states "An inclined plane is a flat surface that slopes." We then match this definition with the given options. The option "Two circles that orbit around an axis" describes a wheel and axle, "A bar that pivots around a fulcrum (the pivot point)" describes a lever, and "A flat surface that slopes" matches the definition of an inclined plane.

Answer:

The correct option is the one with the text "A flat surface that slopes".