大象传媒

  • Forces and movement

    • Introduction to forces

      Learn about the different types of forces and the difference between contact and non-contact forces

    • Pressure

      Pressure is a measure of how concentrated a force is. The amount of pressure exerted on an object depends on the force applied and the surface area it is spread over.

    • Force diagrams and resultant forces

      Learn about drawing and interpreting force diagrams. Find out how to calculate resultant forces acting on an object.

    • Motion and speed

      Find out more about the difference between motion and speed and how to use the speed equation.

    • Representing journeys

      Find out how to use distance-time graphs to describe a journey and to calculate speed.

    • Weight and mass

      Find out about the difference between weight and mass, how to explain why weight changes on different planets and how to apply the weight equation.

    • Friction

      Learn how to identify different types of resistive forces and how to investigate the effect of friction.

    • Terminal velocity

      Learn about the forces acting on an object in free fall and to describe how the motion of an object changes during free fall.

    • Energy stores and energy transfers

      Learn about common energy stores and energy transfers and how to apply the work equation.

    • Moments

      Learn about moments and pivots, apply the moment equation and identify common levers and applications of moments.

    • Hooke's law

      Learn about Hooke's Law and about the spring constant of a spring as being the amount of force needed to extend a spring. Explore how to find the spring constant of a spring.

    • What is gravity?

      Find out about gravitational forces which pull all objects together.

    • How to explain forces

      Learn how forces work.

    • How to show the difference between force and pressure

      Learn how to show the difference between force and pressure.

    • How to weigh a floating object without scales

      Learn how to find the weight of a floating object.

    • How to show pressure exists in liquids

      Find out how to show pressure exists in liquids with this step-by-step demonstration.