Gain understanding that although we cannot see forces, we can see their effects all around us. Physical processes -Force and motion - What is force? Learning Points A force is a push, a pull, or a combination causing a twist. A force is required to begin motion and to change its direction or speed. A Twig Curriculum Film. Delivering key learning points. Get straight to the facts in just three minutes – directly linked to core learning, Twig's curriculum films will fit neatly into your lesson plans.