physics mock y10

• Density (ρ)


  Measured in kg/m³
• Mass (m)


  Measured in kg
• Volume (v)

  Measured in m³
• Density (ρ)


  Can also be measured in g/cm³
• Dense material


  • Has tightly packed particles
• Less dense material


  • Has particles more spread out
• Density = mass / volume
• elastic potential 


  0.5 x spring constant x (elastic potential)2
• repeating tests improves accuracy and ignores anomalous results and makes the results more reliable