7/30/2019 Edexcel Spec Suggested Experiments-2

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AS Suggested experiments:

Mechanics

Determine speed and acceleration, e.g. use light gates Strobe photography or video camera to analyse motion Find the centre of gravity of an irregular rod Use an air track to investigate factors affecting acceleration Measure g using, eg light gates. Estimate, and then measure, the weight of familiar

objects

Estimate power output of electric motorMaterials

Obtain forceextension, forcecompression, and tensile/compressive stress-straingraphs for, eg copper wire, nylon and rubber

Waves

Wave machine or computer simulation of wave properties Demonstration using a loudspeaker and using waves on a long spring Demonstration with ripple tank Meldes experiment, sonometer Measure the refractive index of solids and liquids Models of structures to investigate stress concentrations

DC Electricity

Measure current and voltage in series and parallel circuits Use ohmmeter to measure total resistance of series/parallel circuits Investigate I-Vgraphs for filament lamp, diode & thermistor Measure resistivity of a metal and polythene Use a digital voltmeter to investigate output of a potential divider Measure the emf and internal resistance of a cell eg a solar cell Use of ohmmeter and temperature sensor Demonstration of slow speed of ion movement during current flow

Nature of light

Demonstration of discharge of a zinc plate by ultra violet light Demonstration of atomic line spectra using gas filled tubes

7/30/2019 Edexcel Spec Suggested Experiments-2

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A2 Suggested Experiments:

Further Mechanics

Use of eg light gates and air track to investigate momentum Use of eg light gates and air track to investigate change in momentum Investigate the effect ofm, vand rof orbit on centripetal force Demonstration of electric lines of force between electrodes Use electronic balance to measure the force between two charges Use a Coulometer to measure charge stored Investigate energy stored by discharging through series/parallel combination of

light bulbs

Use of data logger to obtain I-t graph for discharging capacitor Electronic balance to measure effect ofIand lon force Deflect electron beams with a magnetic field Use a data logger to plot V against t as a magnet falls through a coil

Particle Physics

NoneThermal Energy

Measure specific heat capacity of a solid and a liquid using eg temperature sensorand data logger

Use temperature and pressure sensors to investigate relationship betweenp and T. Experimental investigation of relationship betweenp and V Measure background count rate Investigate the absorption of radiation by paper, aluminium and lead (radiation

penetration simulation software is a viable alternative)

Measure the activity of a radioactive source Simulation of radioactive decay using, eg dice

Oscillations

Use a motion sensor to generate graphs of SHM Use vibration generator to investigate forced oscillations Use vibration generator to investigate damped oscillations

Astrophysics and Cosmology

None