Two objects must be touching to create

Force of Gravity

Whenever two objects are touching, they usually exert forces on each other. The force of gravity, on the other hand, is an example of a force that exists between objects without them having to be in contact. Objects with mass exert forces on each other via the force of gravity.

Explanation:

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Answer;

-First class lever

The neck is a first class lever.

Explanation;

-A lever is a simple machine that uses an applied force to rotate a rigid rod about a fixed pivot point/fulcrum with the purpose of lifting a weighted load. There are three major classes of levers, each defined by the location of the applied force or effort in relation to the load or resistance and the fulcrum.

-A first-class lever has its fulcrum placed between the applied force and the load. An example of a first class-lever is a seesaw.