Force Tension/pull


Effect


Pull (The door opens and swings on its pivot points.)


5 Shear


Tear or cut (The paper tears into two pieces.)


6 Assessment guidelines


• This activity is intended for informal assessment. • Use the suggested answers to assess learners informally. Allocate learners a mark out of 12 and give them feedback on their performance to prepare them for formal assessment.


Activity 4 How much force is too much? Learner’s Book page 17 Guidelines to implement this activity


This is a group activity. • Divide learners into groups of 3–4 • Ensure that each group has:


– two bulldog paperclips – four sheets of A4 paper – a pair of scissors – a weight (1 kg) or stone to act as a weight – 1 m string – a stapler – two drinking straws


• Follow the steps carefully to demonstrate to the learners.


44


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