A force that can exist between objects even in the absence of physical contact.

• A. Gravity
• B. Field Force
• C. Contact Force
• D. Projectile Motion

Answer: (B)

The main idea here is non-contact forces—forces that can act between objects without touching. Such forces arise from fields that permeate space, allowing interaction at a distance. Field forces describe this general mechanism. Gravity is a concrete example of a field force: two masses attract each other even when not in contact, because the gravitational field mediates the interaction. So this option is the best answer because it names the broad concept that covers non-contact interactions, with gravity as a specific instance. The other options don’t fit: a contact force requires physical contact, and projectile motion is a description of motion, not a force.