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The half-life of water

In this investigation, using a tall tube filled with water, you let the water out the bottom of the tube, into a beaker/sink. You will record the level of the water at set intervals (every 5 or 10 seconds for example). You will then repeat this a couple of times and plot your average water level against time. You...

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2010 to date

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Half-life dice

This is the classic investigation which demonstrates the idea of radioactive decay and half-life. There are lots of variations of this, but this one looks at using dice and removing those with a number 6. You then plot the graph to work out the ‘half-life’ of the blocks. This is a good investigation to make ...

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2010 to date

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GHz oscillations

In this investigation you will use a GHz oscillations transmitter and receiver to see how different factors affect the signal received. The two main ways are altering the distance between the transmitter and receiver, or keeping this distance the same and altering the angle of the transmitter. An example of graphs...

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2010 to date

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Geiger tube characteristics

This is a simple investigation where you connect a Geiger Muller tube to a variable voltage supply. You then place an alpha source in front of it and record the count rate for a variety of supply voltages to see how this impacts the count rate.

This resource has been provided by Keith Gibbs.

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2010 to date

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Gamma ray absorption

An investigation looking at how gamma radiation is absorbed when it passes through different thicknesses of lead.  From this you can then calculate the absorption coefficient for aluminium.  When doing this investigation please ensure you have followed CLEAPSS guidance or the safety body for your country.

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2010 to date

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Finding g – water path in gravity

By using a constant head apparatus or similar you will investigate the shape of a water path projected through the gravitational field of the Earth to find the acceleration due to gravity. This would benefit from using slo-mo filming or photography, or even to introduce students to a travelling microscope.

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2010 to date

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Finding g – helical spring

By using a helical spring and varying the mass on the end of it, students can time the period of oscillation to calculate the acceleration due to gravity.  This can be done by plotting the extension (e) by the time period squared (T2).  This would be good to use computer software to assist with this....

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2010 to date

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Finding g-linear air track

This investigation uses a linear air track that is tilted to a slope to calculate the acceleration of an object due to gravity.  SUVAT can be used to calculate this value, and datalogging, especially using light gates can be used. Students can also use a protractor to measure angles which can be varied.

This...

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2010 to date

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Fusing currents in wires

This investigation can be used at GCSE or A-level and is looking at how different factors affect when a piece of wire will break when a current is passed through it. Students can alter the length of wire, the type of wire, the thickness of wire and see how this affects the value of current at which the wire breaks...

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2010 to date

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Fresnel Bi-prism

In this A-level investigation students can calculate the wavelength of sodium light using a Fresnel Bi-prism. A micrometre eyepiece is required for this but most of the equipment is readily available, and the worksheet provides simple guidance on how to measure this.

This resource has been provided by Keith...

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2010 to date

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