Core Practical Investigations

1: Determine the acceleration of a freely falling object.
2: Determine the electrical resistivity of a material.
3: Determine the e.m.f. and internal resistance of an electrical cell.
4: Use a falling-ball method to determine the viscosity of a liquid.
5: Determine the Young modulus of a material.
6: Determine the speed of sound in air using a 2-beam oscilloscope, signal generator, speaker and microphone.
7: Investigate the effects of length, tension and mass per unit length on the frequency of a vibrating string or wire.
8: Determine the wavelength of light from a laser or other light source using a diffraction grating.