VCE Physics SAC Practice Units 3 & 4
Practice questions on motion, fields, electricity generation, and light and matter.
VCE Physics Units 3 and 4 explore motion, gravitational/electric/magnetic fields, electricity generation, and the wave-particle nature of light and matter (including special relativity). Physics SACs frequently test your ability to apply mathematical models, interpret experimental data, and explain phenomena using key physics principles. Revizi provides targeted practice that mirrors the analytical demands of real SAC tasks.
SAC: School-Assessed Coursework (SACs) are formal assessments set by your school based on VCAA-prescribed tasks for Units 3 and 4. SACs contribute to your VCE study score alongside the end-of-year exam. For Physics, SACs typically include problem-solving with calculations, analysis of practical investigations, and explanations of physical phenomena. Each SAC assesses specific key knowledge and key skills from the VCAA study design.
Topics Covered
Unit 3 AoS 1: How Do Physicists Explain Motion in Two Dimensions?
- Newton’s laws and free-body diagrams
- Projectile and circular motion
- Momentum and impulse
- Energy transformations
Unit 3 AoS 2: How Do Things Move Without Contact?
- Gravitational fields and orbital mechanics
- Electric fields and Coulomb’s law
- Magnetic fields and field interactions
- Field models and visualisation
Unit 3 AoS 3: How Are Fields Used in Electricity Generation?
- Electromagnetic induction and Faraday’s law
- Transformers and power transmission
- DC motors and generators
- Peak and RMS values for AC
Unit 4 AoS 1: How Has Understanding About the Physical World Changed?
- Wave-particle duality and the photoelectric effect
- De Broglie wavelength
- Einstein’s special relativity (time dilation, length contraction)
- Mass-energy equivalence
Unit 4 AoS 2: How Is Scientific Inquiry Used to Investigate Fields, Motion or Light?
- Student-designed practical investigation
- Assessed by a scientific poster or report, not the end-of-year exam
Question Types
Multiple-Choice Questions
Practice MCQs mapped to VCAA key knowledge. Instant feedback shows why each option is correct or incorrect.
Short Answer Questions
Build exam technique with 2–4 mark questions. Practise concise, precise responses aligned to VCAA marking criteria.
Extended Response
Practice 6–10 mark responses requiring structured arguments with evidence from the study design.
Data Analysis
Interpret graphs, tables and experimental data — a common SAC format across VCE subjects.
How Revizi Helps
VCAA Study Design Alignment
Questions are organised around key knowledge and key skills from Units 3 & 4.
Spaced Repetition Review
After practice, weak topics are scheduled for review using the SM-2 algorithm.
Progress Tracking
Track your performance across topics and question types to identify patterns.
Related Practice Pages
Frequently Asked Questions
How many SACs are in VCE Physics?
Schools typically set 4–5 SACs across Units 3 and 4. At least one SAC per Area of Study is standard, with formats varying between schools.
What format are Physics SACs?
Physics SACs commonly include multi-step calculations, analysis of practical investigation data, and written explanations connecting observations to theoretical models.
Do Physics SACs include calculations?
Yes. Calculations are a major component. You should be confident with algebraic manipulation, unit conversions, and applying formulas from the VCAA formula sheet.
Are these actual past SAC questions?
No. Revizi generates original questions aligned to VCAA key knowledge and key skills, designed to match the style and difficulty of real SAC tasks.
Last updated: March 2026