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

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Prepare for the Year 10 Force and Motion Test. Utilize flashcards and multiple-choice questions with clear hints and explanations to ensure success. Equip yourself for excellence on your exam!

Multiple Choice

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

Explanation:
Contact forces happen when two things touch. Buoyancy fits this idea because the fluid pushes on the surface of an object immersed in it. That push comes from fluid pressure acting on the object's surface, so the force is a direct result of the fluid in contact with the object. Gravity and magnetic forces don’t require touching to act—they operate through fields over a distance. Thrust involves pushing against the surrounding gas, which does involve contact, but buoyancy is the clearest, textbook example of a contact force in this set.

Contact forces happen when two things touch. Buoyancy fits this idea because the fluid pushes on the surface of an object immersed in it. That push comes from fluid pressure acting on the object's surface, so the force is a direct result of the fluid in contact with the object. Gravity and magnetic forces don’t require touching to act—they operate through fields over a distance. Thrust involves pushing against the surrounding gas, which does involve contact, but buoyancy is the clearest, textbook example of a contact force in this set.

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