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Physics

INV Plan and conduct an investigation into the extension of different objects, for example
hair bands or strips of different lengths cut from plastic bags.

textbooks nis edu kz
cardboard scale 0 CM 0 CM
1
1
2
2
wall
3
3
4
4
plastic bag
5
5
6
6

1. Based on the results of your experiments,
plot elastic force vs. extension graphs for your
chosen objects.
2. For which cases does Hooke’s Law apply? Explain
your answer.

Sleeping well is very important for our health. When
we lie in bed, the mattress is deformed. Nowadays
mattresses are produced using different materials;
some use springs and others use a special filler
known as ‘memory foam’. All mattresses use some
kind of elastic material.

ACT Produce an advertisement to promote a
Memory foam
mattress, making sure you use and display your
knowledge of deformation.

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