1. Complete the sentences. 

Choose answers from the box. 

Each answer can be used once, more than once or not at all.

When charge flows through a resistor, the .............................. collide with the metal ions of the resistor.   

Energy is transferred to the .............................. store of the metal ions and they vibrate faster.   

Energy in the  .............................. store of the cell decreases as work is done to move the charge around the circuit.