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  1. Force | Definition & Formula | Britannica

    Dec 4, 2025 · Force, in mechanics, any action that tends to maintain or alter the motion of a body or to distort it. The concept of force is commonly explained in terms of Isaac Newton’s three …

  2. Types of Forces - The Physics Classroom

    In this Lesson, The Physics Classroom differentiates between the various types of forces that an object could encounter. Some extra attention is given to the topic of friction and weight.

  3. Force - Wikipedia

    In physics, a force is an action that can cause an object to change its velocity or its shape, or to resist other forces, or to cause changes of pressure in a fluid. In mechanics, force makes …

  4. Newton’s Laws of Motion | Glenn Research Center | NASA

    Jun 27, 2024 · Newton’s Laws of Motion Sir Isaac Newton’s laws of motion explain the relationship between a physical object and the forces acting upon it. Understanding this …

  5. Force Definition in Science

    Mar 30, 2022 · The four fundamental forces of nature are gravity, electromagnetism, the strong interaction, and the weak interaction. Gravity is the attractive force between two masses.

  6. Forces in Physics: Definition, Types, and Examples

    In physics, a force is defined as any influence that causes an object to undergo a change in motion. Mathematically, force is a vector quantity characterized by both magnitude and …

  7. 4.1 Force - Physics | OpenStax

    Like displacements, velocities, and accelerations, forces are vectors that have magnitude and direction. We may represent a force as the sum of two vectors at right angles.

  8. 10 Types of Forces - Earth How

    What is a force? A force is a push or pull on an object. It can make things move, stop, or change direction. For example, types of forces include gravity, friction, and magnetism. Forces are a …

  9. Force - Math is Fun

    Force is push or pull. Unbalanced forces make an object accelerate. Forces on an object are usually balanced: forces in one direction are equal to forces in the opposite direction: No …

  10. Forces – The Physics Hypertextbook

    It is now time to expand our studies to include the quantities that affect motion — mass and force. The mathematical description of motion that includes these quantities is called dynamics. …