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Conduction along rods sim

Heat is conducted along each rod from the hot end: the particles there vibrate more and pass energy on to their neighbours, and in metals free electro

Conduction along rods · covers the GCSE, IGCSE, O-Level topic

Live, not a video. Anyone can unlock 2 figures free; a free account unlocks up to 5 and keeps them in your dashboard.

What the sim shows

Heat is conducted along each rod from the hot end: the particles there vibrate more and pass energy on to their neighbours, and in metals free electrons carry it much faster. The rod is also losing heat to the air all along, so it warms only so far. Where the rod reaches 50 °C the wax melts and the pin drops. Copper is the best conductor here: its first pin drops after 4 s and all 5 drop. Aluminium is close behind, iron drops only 2, and glass, a poor conductor (an insulator), drops none. The rods are 6 mm across and stick out 20 cm. Shown 10 times faster than real time.

  • Rod colour: grey cool, red hot
  • Below: temperature along each rod

Use it in your lessons

  • Try it here: anyone can unlock 2 figures free, and a free account unlocks up to 5. Runs on a laptop, a Chromebook or a phone; nothing to install.
  • Present it and share student links with the teacher plan, from US$5 a month, billed yearly.
  • Put it on your own website or LMS for US$9, paid once, or every sim from US$29 a month.

Free guide: 12 practicals as sims, and how to run one in a lesson →

Need a version for your exact set-up? Have one made: US$49 a figure in an order of 5.

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