How can you measure the diameter of a coin, the circumference of a coin, the thickness of a sheet of paper, and the diameter of a copper wire more precisely?
1. it should be possible to measure the diameter of a coin with a vernier caliper. The thickness of a piece of paper can be found in more than 100 sheets, such as 100 or so2., you can string the coin a circle, and then the rope flat release, with a ruler measurement3. press the diameter of the copper wire - find a pencil type of cylindrical object, copper wire wrapped in the top 10 laps, then measure the length of 10 laps, in addition to 10 (note that in the winding when the 2 layer of silk is not spaced)
A copper wire and a coin can be made with a micrometerA sheet of paper can measure the thickness of a stack of papers at an average valueThe copper wire can also be wrapped around a pencil or even a cylinderHow many laps?Tie tightMeasure the length of the wrapped copper wireDivided by the number of turns on the copper wire
Measure the diameter of a coin. You can circle a coin with a thin line. Measure the circumference of the coin first and then the diameterAsk for the thickness of a sheet of paper. You can put 100 sheets of paper together and measure the thickness of the 100 pages, then divide by 100Ask for the diameter of the copper wire. You can circle the copper wire close to the pencil, measure the length of the copper wires, and then divide the number of turns
