If the nickel has a greater density than the penny and quarter, then it will have a greater mass to volume ratio. If the penny has a lower density than the nickel and quarter, then it will have a lower mass to volume ratio.
Weight:
Type of Coin
10 Pennies 21.5 grams Volume: 6.28cm
5 Nickles 22.5 grams Volume: 8.36cm
5 Quarters 27.5 grams Volume: 12.27cm
Density:
Pennies: 3.42cm
Nickles: 2.69cm
Quarters: 2.24cm
Yes my hypothesis was correct.
I didnt really have any problems with this experiment once I figured out what I needed to use to finish it.
Vending Machines and Ice in water are examples that apply to this experiment.