Electric Potential, Potential Energy & Capacitors — Drills · Grade 12 Science
Chapter: Electricity, Magnetism & CircuitsWhat these drills covers
By the end of Electric Potential, Potential Energy & Capacitors you should be able to:
- I can distinguish electric potential, field, and potential energy.
- I can calculate capacitor charge and energy with unit-prefix conversions.
2 questions, numeric and written answer, each with a worked explanation.
Vocabulary used: electric potential, capacitance, equipotential.
Problem 1
Charge 3C moves through a +4 V difference. Find ΔU.
Hints
Write the relationship first; substitute with consistent units.
Answer and explanation
12 J
qΔV=12.
Problem 2
How do potential and field differ?
Answer and explanation
Potential is scalar energy per charge; field is vector force per charge.
Response criteria
- State a scientifically accurate conclusion.
- Show the calculation or mechanism that supports it.
- Include units, conditions, or limits where relevant.