Question

multiple choice question
which type of forces are exerted by the external world on a system without contact?
o field forces, such as gravitation and magnetism
o field forces, such as tension and drag
o normal forces, such as tension and drag
o normal forces, such as gravitation and magnetism
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Explanation:

Field forces act at a distance without physical contact. Gravitation (force between masses) and magnetism (force between magnetic objects) are examples of field forces. Tension (in a rope) and drag (force on an object moving through a fluid) are contact forces. Normal force is also a contact force (perpendicular force between two surfaces in contact).

Answer:

field forces, such as gravitation and magnetism