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2. List of physics concepts in primary and secondary education ...

   en.wikipedia.org/wiki/List_of_physics_concepts...

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3. Newton's laws of motion - Wikipedia

   en.wikipedia.org/wiki/Newton's_laws_of_motion

   The forces acting on a body add as vectors, and so the total force on a body depends upon both the magnitudes and the directions of the individual forces. When the net force on a body is equal to zero, then by Newton's second law, the body does not accelerate, and it is said to be in mechanical equilibrium .

4. Impulse (physics) - Wikipedia

   en.wikipedia.org/wiki/Impulse_(physics)

   This type of impulse is often idealized so that the change in momentum produced by the force happens with no change in time. This sort of change is a step change , and is not physically possible. However, this is a useful model for computing the effects of ideal collisions (such as in videogame physics engines ).

5. Line of action - Wikipedia

   en.wikipedia.org/wiki/Line_of_action

   The line of action is shown as the vertical dotted line. It extends in both directions relative to the force vector, but is most useful where it defines the moment arm. In physics, the line of action (also called line of application) of a force (F →) is a geometric representation of how the

6. Motion - Wikipedia

   en.wikipedia.org/wiki/Motion

   Simple harmonic motion – motion in which the body oscillates in such a way that the restoring force acting on it is directly proportional to the body's displacement. Mathematically Force is directly proportional to the negative of displacement. Negative sign signifies the restoring nature of the force. (e.g., that of a pendulum).

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9. Free body diagram - Wikipedia

   en.wikipedia.org/wiki/Free_body_diagram

   In physics and engineering, a free body diagram (FBD; also called a force diagram) [1] is a graphical illustration used to visualize the applied forces, moments, and resulting reactions on a free body in a given condition. It depicts a body or connected bodies with all the applied forces and moments, and reactions, which act on the body(ies).