Which of the following is NOT an example of a non-contact force?

Which of the following is NOT an example of a non-contact force?

• A. Magnetic force
• B. Gravitational force
• C. Tension force
• D. Electric force

Answer: (C)

Tension force is the correct choice as it is classified as a contact force, which arises when objects are physically in contact with each other, such as in a rope or cable that is pulling on an object. In contrast, non-contact forces, like magnetic, gravitational, and electric forces, can act at a distance without the need for physical contact between the interacting objects. Magnetic force operates through the interaction of magnetic fields, allowing magnets to attract or repel each other even when they are not in direct contact. Gravitational force affects masses across space, pulling them toward one another based on their masses and the distance between them. Electric force also acts at a distance, resulting from charged particles influencing each other regardless of physical contact. This distinction makes tension force a clear example of a contact force while the others are categorized as non-contact forces.

Tension force is the correct choice as it is classified as a contact force, which arises when objects are physically in contact with each other, such as in a rope or cable that is pulling on an object. In contrast, non-contact forces, like magnetic, gravitational, and electric forces, can act at a distance without the need for physical contact between the interacting objects.

Magnetic force operates through the interaction of magnetic fields, allowing magnets to attract or repel each other even when they are not in direct contact. Gravitational force affects masses across space, pulling them toward one another based on their masses and the distance between them. Electric force also acts at a distance, resulting from charged particles influencing each other regardless of physical contact. This distinction makes tension force a clear example of a contact force while the others are categorized as non-contact forces.