Exploding photographic film case: results

DrDAQ plot of the output from force sensor

Answers to questions

  1. Area under graph represents the impulse, or change of momentum.
  2. A softer surface would increase the time and reduce the force.

Teachers’ notes

Take care with the lid when it explodes. You should have a minute before it goes off. Keep all pupils away!

Credits, comments and further info

This experiment was written by John Wright of Monkton Combe School.