Question

machine is a device that can make work easier.
there are 6 simple machines;
a is a bar that pivots around a fulcrum (the pivot point).
an inclined plane is a flat surface that slopes
a is a wheel attached to a smaller axle. these
two parts rotate together to create a simple machine.
a is two inclined planes back to back.
a 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.
which simple machine is a bar that pivots
around a fulcrum (the pivot point)?
a wedge
a lever
a pulley

Explanation:

The question asks to identify a simple machine described as a bar that pivots around a fulcrum. From the given information:

• A wedge is defined as two inclined planes back - to - back.
• A lever is explicitly stated as a bar that pivots around a fulcrum.
• A pulley is a grooved wheel with a cable wrapped around it.

Answer:

B. A lever