Forces between charged and uncharged objects
2 marks · EasyA student has two rods: Rod A (positively charged) and Rod B (uncharged).
(a)[1 mark]
Predict what happens if Rod A is brought near Rod B and state the type of force involved.
(b)[1 mark]
Explain your answer.
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Show answer
(a) Rod B will be attracted to Rod A.
(b) —
Show mark scheme and worked solution
Marking points
B1 (a) · 1 mark · Predicts attraction between Rod B and Rod A
M1 (b) · 1 mark · Explains that a charged rod induces an opposite charge on the uncharged rod, resulting in attraction
Worked solution
a) Rod B will be attracted to Rod A.
b) The positive charge on Rod A attracts electrons to the side of Rod B nearest to it, making that side negative and causing attraction.