Investigate the effectiveness of different materials as thermal insulators and the factors that may affect the thermal insulation properties of a material.
Use circuit diagrams to construct appropriate circuits to investigate the I−V characteristics of a variety of circuit elements including a filament lamp, a resistor and a diode at constant temperature.
Investigate:
• the effect of varying the force on the acceleration of an object of constant mass
• the effect of varying the mass of an object on the acceleration produced by a constant force.