Design an experiment to find out if a quarter has more silver or copper in it. The density of copper is 8.9 g/cm3 and the density of silver is 10.5 g/cm3. (write your experiment in steps)

weigh it in air

weigh it in water
find the volume either by doing pi r^2 t or by measuring the volume of water displaced
Mc = 8.9 Vc
Ms= 10.5 Vs
mass total = Mc + Ms = Mt
so
8.9Vc + 10.5 Vs = mass you measured
and Vc + Vs = volume you calculated or measured
solve the two equations for Vc and Vs

Did you know?

Density can be used as a property to determine the composition of different materials. For instance, you can design an experiment to find out if a quarter has more silver or copper in it! Here's how: 1. Gather materials: - A balance - A graduated cylinder - Water - A quarter coin 2. Measure the mass of the quarter coin using the balance. 3. Fill the graduated cylinder with a specific volume of water, recording the volume. 4. Gently drop the quarter coin into the graduated cylinder. Observe the increase in volume due to displacement. Record the new volume. 5. Calculate the density of the quarter coin using the formula: Density = Mass/Volume. 6. Compare the density of the quarter coin to the known densities of silver (10.5 g/cm3) and copper (8.9 g/cm3). 7. If the density of the quarter coin is closer to 10.5 g/cm3, it indicates a higher concentration of silver. Conversely, if the density is closer to 8.9 g/cm3, it suggests a higher concentration of copper. By following this experiment, you can determine whether a quarter contains more silver or copper based on its density.