10 Examples of Non-Contact Forces

Non-contact forces are forces that act between objects that are not touching. Unlike contact forces like friction and tension, non-contact forces can exert influence over a distance. Here are 10 common examples of non-contact forces:

1. Gravitational Force - The force of gravity acts between two objects with mass. Gravity keeps planets in orbit around stars and governs motion in the universe. The gravitational force gets weaker with greater distance.

2. Electrostatic Force - The force between electric charges. Unlike charges (positive and negative) attract, while like charges repel. Electrostatic forces explain phenomena like static cling.

3. Magnetic Force - The force generated by magnetic fields. Magnetic forces result from the motion of electric charges and act on other nearby moving charges and magnets.

4. Nuclear Force - The extremely strong force holding protons and neutrons together in the nucleus of an atom. Nuclear forces overcome the electromagnetic repulsion between protons.

5. Weak Nuclear Force - The force involved in some nuclear processes like beta decay. Weak nuclear forces govern radioactive decay.

6. Electromagnetic Force - Encompasses both electric and magnetic forces. Electromagnetic forces propagate as waves (radiation) at the speed of light.

7. Strong Nuclear Force - The force binding quarks into protons, neutrons, and other hadrons at the subatomic level. Strong forces keep nuclei from flying apart.

8. Casimir Effect - Tiny attractive forces between neutral metal plates in a vacuum due to quantum fluctuations of the electromagnetic field.

9. Van der Waals Forces - Weak electrostatic forces of attraction between neutral molecules. Responsible for some non-covalent interactions between organic compounds.

10. Centrifugal Force - The apparent outward force on rotating objects. Centrifugal forces in spinning centrifuge machines have practical applications.

Understanding these non-contact forces helps explain many physical phenomena from the subatomic world to the universe at large. Scientists continue researching to better map the range and strength of the various forces governing matter and energy.

References
https://eduinput.com/examples-of-non-contact-forces/

https://www.youtube.com/watch?v=SybIX2nEn1E&pp=ygUbZXhhbXBsZXMgb2Ygbm9uIGNvbnRhY3QgZm9y&ab_channel=InfinityLearnNEET

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