Physics - Density of Materials

Physics - Density of Materials

1. To find density of a solid object

   • Use a balance to measure its mass
     • If its a regular solid, measure its length, width and height
       • Find its volume using the relevant equation
     • For an irregular solid, you can find volume by submerging it in an eureka can filled with water
       • Record the volume of water displaced into a measuring cylinder.

2. To find the density of a liquid

   • Place a measuring cylinder on a balance and zero the balance
     • Pour 10 ml of the liquid into the measuring cylinder, repeating the process until the cylinder is full and recording the total mass and volume each time
       • For each measuring, use the formula to find the density
         • Calculate the average, this will give the density

3. Density = Mass divided by volume

4. The particles in a system vibrate or move around - They have energy in their kinetic energy stores

   • They also have energy in their potential energy stores due to their positions