Free worksheet and solutions · OCR A AS · H156
EMF, Internal Resistance and Practical Analysis Worksheet
AQA and OCR A internal resistance worksheet with answers. Model battery voltage, plot V–I data, evaluate uncertainty and plan an emf measurement practical.
What is covered
Questions and skills covered
The worksheet contains 6 pages of printable questions. A separate 6-page solutions PDF makes it easy to mark, review or share answers after the activity.
- EMF, terminal p.d., lost volts and source combinations
- Graph intercept, negative gradient and uncertainty decisions
- Correct cell-terminal circuit and method: AQA RP6 preparation
About this activity
EMF, terminal p.d., lost volts and source combinations. Graph intercept, negative gradient and uncertainty decisions. Correct cell-terminal circuit and method: AQA RP6 preparation.
Before you start
Previously taught topic content, graph reading and consistent SI units.
Revise the physics
Specification fit
This shared first-year PDF includes both boards’ references and a board-neutral footer. Choose the course context below; the worksheet keeps one canonical page.
- OCR A AS H156 · Electrons, waves and photons · 4.3.1(f), 4.3.2(a), 4.3.2(b), 4.3.2(c)(i), 4.3.2(c)(ii), 1.1.3(d)(i), 1.1.3(d)(ii), 1.1.4(d), 1.1.4(e)
- OCR A A Level H556 · Electrons, waves and photons · 4.3.1(f), 4.3.2(a), 4.3.2(b), 4.3.2(c)(i), 4.3.2(c)(ii), 1.1.3(d)(i), 1.1.3(d)(ii), 1.1.4(d), 1.1.4(e)
- AQA AS 7407 · Electricity · 3.5.1.6, 3.5.1.4, 3.1.2 · AQA required practical 6 preparation
- AQA A Level 7408 · Electricity · 3.5.1.6, 3.5.1.4, 3.1.2 · AQA required practical 6 preparation
OCR A AS Physics Worksheets
H156 · 4.3.1(f), 4.3.2(a), 4.3.2(b), 4.3.2(c)(i), 4.3.2(c)(ii), 1.1.3(d)(i), 1.1.3(d)(ii), 1.1.4(d), 1.1.4(e)
Choose the correct pathway: Shared source-model and practical route, AQA RP6 preparation; not a claim of complete circuit-law coverage. Practical preparation and analysis, not evidence of completing supervised practical work.
Classroom use
Use the worksheet for class practice, homework, intervention, cover work or revision. Keep the PhysicsUK attribution intact when sharing copies with pupils.