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1. Write the name of each mechanism: (2 p)
2. Fill the gaps: (1p)a) Metals are usually ______________, so electric current can pass
through them.b) The copper ires are co!ere" ith plastic, because it is
________________c) #b$ects attract or repel because of the electrical _________________") %lectric current is a continuous ___________________ of electrons
&. 'omplete (2 p)
Component Symbol Useenerates motion
ulb
*rotect the circuit
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+. ra the "iagrams of these circuits: (& p)
a)
b)
c)
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-. %plain ho circuits b) an" c) or/. (2 p)