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non-contact force

Primary Information
Secondary Information

Definition

A non-contact force is a force that can be exerted on an object without touching it. Some examples of non-contact forces include:

  • Gravity: Gravity is the force that pulls objects towards each other. It is the force that keeps us on the ground and the planets in orbit around the sun.
  • Magnetism: Magnets can attract or repel each other without touching. This is because magnets have a force called magnetism.
  • Electricity: Electricity can also create a non-contact force. This is because electric charges can attract or repel each other.

How can the word be used?

The gravitational force is a non-contact force that attracts two objects with mass towards each other.

non-contact force

Different forms of the word

The word "non-contact force" does not have any different forms. It is a compound word that is made up of the prefix "non-," which means "not," and the noun "contact force," which means a force that acts between two objects that are in contact with each other.

Etymology

The word "non-contact force" was first used in the early 20th century. It was used to describe forces that were not understood at the time. However, scientists have since learned a great deal about non-contact forces, and they now play an important role in our understanding of the universe.

Question

What is a non-contact force?