O-LevelPhysicsElectricity5054/12 · Oct/Nov 2017 · Q271 Mark
A plastic block is rubbed with a silk handkerchief and the block becomes charged. What causes the block to become charged?
ANegative electrons flow from the handkerchief and positive electrons flow from the block.
BNegative electrons flow from the handkerchief to the block.
CPositive electrons flow from the block to the handkerchief.
DPositive electrons flow to the handkerchief and negative electrons flow from the block.
✓ Correct answer
B: Negative electrons flow from the handkerchief to the block.
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