Which of the following is an example of a non-contact force?

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Multiple Choice

Which of the following is an example of a non-contact force?

Explanation:
Non-contact forces act on an object without touching it, working through fields or long-range interactions. Gravity is a prime example: masses attract each other from a distance, so Earth pulls on you and objects fall even when there’s no physical contact. In contrast, friction, normal force, and tension all require contact with another object or surface or are transmitted through a string; friction arises between touching surfaces, the normal force is the push from a surface on a contact body, and tension is the pull carried along a rope. So gravity is the non-contact force in this set.

Non-contact forces act on an object without touching it, working through fields or long-range interactions. Gravity is a prime example: masses attract each other from a distance, so Earth pulls on you and objects fall even when there’s no physical contact. In contrast, friction, normal force, and tension all require contact with another object or surface or are transmitted through a string; friction arises between touching surfaces, the normal force is the push from a surface on a contact body, and tension is the pull carried along a rope. So gravity is the non-contact force in this set.

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