大象传媒

  • Explaining motion

    • Forces - OCR 21st Century

      Forces arise from the interactions of two objects. They can be divided into two categories - contact forces and non-contact forces.

    • How can we describe motion? - OCR 21st Century

      The movement of objects can be described using motion graphs and numerical values. These are both used to help in the design of faster and more efficient vehicles.

    • Force and motion - OCR 21st Century

      Unbalanced forces on an object will change its motion. Ideas about force and momentum can be used to explain road safety measures.

    • Motion and energy transfer

      Energy stored in a moving object is called kinetic energy. As an object is raised above ground its gravitational potential energy increases. When a force moves an object work is done.

    • Sample exam questions - motion - OCR 21st Century

      Understanding how to approach exam questions helps boost exam performance. Questions will include multiple choice, descriptions and explanations, using mathematical skills and extended writing.

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