PHY ICS - The Institute of Physics in Ireland
PHY ICS - The Institute of Physics in Ireland
PHY ICS - The Institute of Physics in Ireland
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14 P H Y S I C S O N S T A G E 2<br />
Roll uphill can<br />
SPAIN: ‘Teach<strong>in</strong>g <strong>Physics</strong> with a Smile’ by Rafael Garcia Mol<strong>in</strong>a<br />
Place a weight <strong>in</strong>side the biscuit t<strong>in</strong> (a magnet is ideal).<br />
<strong>The</strong> t<strong>in</strong> will roll up the slope (at least half a turn!), appear<strong>in</strong>g to defy gravity.<br />
Alternatively, the t<strong>in</strong> can be made to roll away on it’s own if placed on a level surface.<br />
Further Topics: Centre <strong>of</strong> Gravity, Equilibrium, Rotational Energy, etc.<br />
Roll back can ‘the perfect pet’<br />
ITALY: Marisa Sasso and team.<br />
Punch two holes <strong>in</strong> each end<br />
<strong>of</strong> the can.<br />
Loosely fit the band and weight<br />
When the t<strong>in</strong> is pushed away<br />
the band tightens<br />
When the t<strong>in</strong> stops, the elastic<br />
unw<strong>in</strong>ds and the can rolls back.<br />
Hidden mass here<br />
Further Topics: Potential Energy, K<strong>in</strong>etic Energy, Motion, Eng<strong>in</strong>es, etc.
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