2.25 know that there are forces of attraction between unlike charges and forces of repulsion between like charges

2.25 know that there are forces of attraction between unlike charges and forces of repulsion between like charges

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  1.11 describe the effects of forces between bodies such as changes in speed, shape or direction

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  1.15 calculate the resultant force of forces that act along a line

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  1.21 describe the forces acting on falling objects (explain why falling objects reach a…

• 1.24 describe elastic behaviour as the ability of a material to recover its original shape…

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  1.32 use the principle of moments for a simple system of parallel forces acting in one plane

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  1.33 understand how the upward forces on a light beam, supported at its ends, vary with the…