External forces – forces that are not produced by our bodies such as gravity or air resistance

Internal forces – Movement created by  using our muscles

An example of an Internal Force is a push or pull.  An example of a an Internal Force in trampolining is pushing your feet in to the bed to make the bed dip enabling the bed to move up and down. The harder we push the deeper the dip and the higher we will bounce out of the bed.

We use forces everyday without even realising it

○ Getting out of bed in the morning
○ walking to work,
○ playing sports
○ running for the bus
○ Standing Still
○ Making the body change direction

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