[nick198929]

Hey there :3

I'm doing an ISA on Crumple Zones, but I'll be doing it at home and I was wondering what equipment would I need and how would I go about setting up the graph and the table?

The ISA on 2.5 Crumple Zones says the following,

"This work should be carried out during the teaching of the sections relating to:

What happens to the movement energy when things speed up or slow down?

When a force causes a body to move through a distance, energy is transferred and work is done.

Candidates should be given the opportunity to carry out an investigation concerning crushing paper cylinders.Candidates may make paper cylinders by cutting a small square out of paper, rolling it into a cylinder and then gluing or taping the two edges together. The minimum amount of tape should be used
otherwise the cylinder will be given artificial strength. A small platform of, say, hardboard is then placed on top of the cylinder and weights added until the cylinder is crushed. A suitable size for the platform is about 10 cm by 10 cm.

Candidates may choose from a number of factors to investigate as the independent variable, eg
• diameter of cylinder
• height of cylinder
• thickness of paper."

I'm wondering whether using salt ranging from 10g - 100g would be acceptable to crush the paper cylinder and how I would go about doing it, as what would occur if the cylinder didn't crush at 10g? Etc.

What information would be put in the table and how would I set that one?

I really appreciate all comments. Thanks

[nick198929]

All comments are appreciated

[rosehx]

i did this ISA today.. we used CDs as the 'small platform' so we could center the weights. i doubt salt would be appropriate.. our cylinders were 10cm tall and between 2-10cm diameter and they needed 600g to about 2600g to crumple, so you'd have to use an awful lot of salt. good luck, it's a pretty straight-forward ISA..