If the bowl of the spoon be filled with water, what will result?

The bowl will sink, and the handle of the spoon will rise.

What will cause the bowl of the spoon to sink?

The weight of the water in it will cause it to sink.

How can the bowl of the spoon be prevented from sinking?

By applying a force to the handle of the spoon, equal to the weight of the water put in the bowl.

What is the force applied to the handle called?

It is called the Power.

What three things are always necessary when the lever is used?

The power, the fulcrum, and the weight, are always necessary when the lever is used.