Physics Question : Finding the acceleration due to gravity 'g'?

Andrea Zammit

New member
A circuit with an electromagnet, soft iron sphere, Centi Second timer and gate is set up.

The sphere is placed close to the electromagnet and S is switched on to position (1).
a) Describe and explain what happens.

b) Switch S is now moved to position (2) and the sphere falls. Explain.

c) Describe how : i) The time of the fall ''t'' is measured
ii) the distance ''h'' is measured.


d) The initial velocity of the ball is 0m/s. If the distance ''h'' is 1.0m and the time of fall is 0.45s, calculate a value for ''g''.
 
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