GCSE Physics (AQA)

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Effects of Forces

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Forces Forces and their interactions

Effects of Forces

2:07 Introduction to Forces
Spec 4.5.1.2
Previous Calculating Elastic Potential Energy Next Non-Contact Forces
  • A force is defined as a push or a pull exerted by one object on another.
  • Examples of forces include pushing a box, gravity, driving force, and friction.
  • Forces can cause three main effects on an object if they are unbalanced:
  • 1. Change in shape (e.g., stretching a rubber band, bending, breaking, or squashing).
  • 2. Change in speed (e.g., a train accelerating due to the driving force from the engine).
  • 3. Change in direction (e.g., a ball changing direction when hit by a racket).
  • These changes indicate that the velocity of the object can change.
  • Understanding when a force is acting on a system is crucial for identifying changes in an object's behavior.

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