The plastic in bags has been designed to have high tensile strength (or ability to withstand stress) the Plastic bag tester uses Hooke Law to work out the stress, and the strain for Young's Modulus.
Plastic strip tester
00:00 - Start
00:33 - Science with Philip
00:40 - Introduction to the experiment
01:01 - Strip Testers by Lascelles
01:51 - Setting up the experiment for Bag #1
04:36 - Worried if the plastic is strong enough?
06:34 - Bag #1 stretching
08:37 - Deformed Plastic
10:02 - Setting up Bag #2
11:26 - Is the length of the Strip Important?
12:22 - Bag #2
13:32 - Surpassed bag #1
15:42 - Bag #2 Elastic potential reached
16:18 - Concluding thoughts
19 ноя 2021
