Science at key stage 3 (Year 7)
Unit 7K: Forces and their effects
Section 6: Checking progress
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Objectives |
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- that there are many situations in which forces are balanced
- how to represent balanced forces with arrows
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Activities |
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Outcomes |
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Children: |
- Review the way the direction of a force can be represented by an arrow. Tell pupils they can also be scaled to show size. Give representations of the floating, sinking and stretching situations. Ask pupils to draw arrows to show that the forces are balanced. Discuss how the elastic force in a spring/rubber band increases to balance the increased weight of an object.
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- identify the forces which are balanced in a range of situations
- use arrows to scale to show situations in which forces are balanced
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Points to note |
- Interactive CD-ROMs could be useful for recapping this section and to introduce the next.
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This unit is divided into sections. Each section contains a sequence of
activities with related objectives and outcomes. You can view this unit by
moving through the sections or print/download the whole unit.
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