Balanced and Unbalanced Forces

These diagnostic questions and response activities (contained in the zip file) support students in being able to:

  • Identify pairs of forces that are balanced or unbalanced.

  • Calculate the size and direction of the resultant force of two forces acting along the same straight line.

  • Deduce the relative size of resultant forces by comparing pairs of unbalanced forces

  • Describe what happens when two equal sized forces act on an object, both acting along the same straight line but in opposite directions.

  • Describe what happens when two unbalanced forces act an object, both acting along the same straight line.

The resources include details of common misconceptions and a summary of the research upon which the resources are based.

Download the zip file for all the questions and activities.

More resources like this can be found on the BEST webpage:  Best Evidence in Science Teaching

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