Digital micrometer screw gauge: zero it, then measure a wire sim
Find and correct a positive or negative zero error, close the jaws on a wire with the ratchet, measure the diameter at three places, average, and work out A = πd²/4.
Physical quantities, units and measurement · covers the O-Level, IGCSE, GCSE topic
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Free guide: 12 practicals as sims, and how to run one in a lesson →
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More physics sims
- Appliance power and the electricity bill simSwitch on a kettle, toaster, fan and LED lamp, set a timer, run them and watch an energy meter count kilowatt-hours, then record each run and work out the cost at a price per kWh you choose.
- Dispersion and colour simShine a ray box through a glass prism to spread white light into a spectrum, slide colour filters into the beam, and light six coloured blocks with red, green or blue light to see which ones turn black.
- Pressure = force ÷ area: a brick on sand simTurn a real brick onto each of its three faces in a tray of sand and add 1 kg masses, record the pressure each time, and plot pressure against 1/area to see the same force give more pressure on a smaller area.
- Size ladder: atom to Earth simDrag a zoom slider along a powers-of-ten rail from 10⁻¹⁰ m to 10⁷ m and record the real objects that come into view, from a hydrogen atom to the Earth, with their sizes in prefixes and standard form.
- Leslie cube: emitters and absorbers of infrared simPour hot water into a Leslie cube, read a thermopile 10 cm from each face over three rounds as it cools, then time which waxed pin drops first beside a radiant heater.
- Refraction through a rectangular glass block simSet a ray box or pins, mark the ray, measure i and r with a protractor, and find n from the gradient of sin i against sin r.