Which of the following is an example of a force?

• A. A hand pushing
• B. Gravity
• C. Wind
• D. All of the answers are correct.

Answer: (D)

A force is a push or pull that can cause a change in motion or shape. The hand pushing on an object is a direct contact force. Gravity pulls objects toward Earth, a non-contact force. Wind exerts a push on surfaces as air moves. Each example fits the idea of a force, so all of them are forces. In physical education, recognizing these forces helps explain why you can accelerate when pushing off, stay grounded because of gravity, and experience resistance or assistance from wind during movement.