I have seen cards boards with different size holes in it to use for measuring the size of marbles.
Instrument used to measure the diameter of a marble.
What is an instrument that measures mass.
If you know the radius of a circle you multiply it by 2 to get the diameter.
R3 3 volume of sphere.
Now let us use this vernier calipers to measure the diameter d of a marble ball marble balls usually have d 1 2 in.
A balanced scale which compares the mass of one object with that of a known quantity.
Then use the formula to find out the diameter d perimeter 3 14 you could certainly do it that way.
You use a triple beam scale to measure mass.
Measure the perimeter of the wheel using a tape measure.
As a marble is a sphere and a sphere is an endless number of circles it is impossible to squeeze a circle with a diameter of 2 1 2 inch through a 2 7 16 inch hole.
Write down the measurement.
Lay a marble template on the tissue and try the marble in the different holes until you find the one closest to the size of the marble.
My idea is that with this system the largest size of the marble is measured.
Most templates measure to 16ths of an inch.
If you know the circumference of a circle you divide by pi to get the diameter you measure it.
We used this instrument in a physics lab to measure the diameter of a tennis ball marble etc.