IB DP Physics (2025) A3 Work, Energy and Power Bundle

The complete Topic A.3 Work, energy and power unit for IB DP Physics, SL and HL, first assessment 2025: seven lesson packs, an open-inquiry practical, the SL and HL topic test and two maths skill packs, 30% off buying them separately.

What’s in the unit

• Seven lesson packs in teaching order: Energy and Its Conservation; Work Done and Kinetic Energy; Gravitational and Elastic Potential Energy; Conservation of Mechanical Energy I; Conservation of Mechanical Energy II; Power and Efficiency; and Energy Density and Sankey Diagrams.
• An open-inquiry practical, Investigating Conservation of Mechanical Energy: a trolley lab in which each group writes its own research question, as a full pack with its own deck.
• The Topic A.3 test at SL and HL: Paper 1 (50 minutes) and Paper 2 (45 minutes), 25 marks each, with AO-tagged mark schemes.
• Two maths skill packs: Gradients and Areas Under Graphs, with 33 answered questions, and Rearranging and Deriving Equations, with 43.

Together the seven lessons cover all 14 understandings of Topic A.3, from the conservation of energy and the work done by a force to kinetic, gravitational and elastic potential energy, power, efficiency, Sankey diagrams and the energy density of fuel sources. The topic test assesses all 14.

Every lesson pack includes:

• An editable student worksheet
• A teacher key with every answer and marking point
• Worked solutions with every step and its units
• A questions-only assessment with IB mark allocations
• A choreographed lesson deck with staged reveals

Across the seven: 137 student worksheet pages, 217 teacher key pages and 434 slides.

IB skills (mostly Tool 3: Mathematics): selecting, manipulating and deriving equations; fractions, ratios, exponents and trigonometric ratios; resolving vectors and scale diagrams; proportionality; approximation, estimation and orders of magnitude; percentage change; derived units, unit checks and significant figures; gradients, areas under graphs and best-fit lines; propagated uncertainties and uncertainty bars; and, from Inquiry 1, 2 and 3, research questions and hypotheses, designing a method, qualitative observations, random and systematic errors, and justifying conclusions.

Everything ships as self-contained HTML that opens in any browser with nothing to install, every worksheet editable, plus colour and black-and-white PDF of every document. The test’s grade boundaries are set by YPhysics, not the IB, and you can edit them. SI units, IB notation and IB command terms throughout. Suitable for grades 11-12 (ages 16-19) for first teaching, assessment and revision.

Also in the catalogue, sold separately:

• A.2 Forces and Momentum Complete Unit Bundle, the topic before this one
• Foundations of Motion: Distance and Displacement, a whole lesson pack in this format, free

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