What is the specific heat capacity required practical?
• Find the specific heat capacity of a material
What is the basic method for the SHC practical?
• Measure the mass of the block
• Heat it with a heater
• Measure current, voltage and time
• Measure the temperature rise
How do you calculate the energy supplied in the SHC practical?
• E = IVt
How do you calculate specific heat capacity from the practical?
• c = E / (mΔθ)
What is the insulation required practical?
• Investigate the best thermal insulator
What is the basic method for the insulation practical?
• Use the same volume of hot water
• Wrap containers in different materials
• Measure temperature drop over time
What is the independent variable in the insulation practical?
• The insulating material used
What is the dependent variable in the insulation practical?
• Temperature change
• Or rate of cooling
What control variables matter in the insulation practical?
• Same volume of water
• Same starting temperature
• Same container
• Same time
How do you identify the best insulator?
• It gives the smallest temperature drop
What practical skills can be tested in Topic 1?
• Identify variables
• Suggest improvements
• Spot anomalies
• Calculate means
