F3 PHY OPENER TERM 3 2026 MS
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Word Editable SampleFORM 3 TERM 3 OPENER EXAMINATION 2026PHYSICS MARKING SCHEME
SECTION A (40 MARKS)
Q1.
Main scale reading = 6.50 mm
Thimble scale reading = 38 x 0.01 = 0.38 mm
Observed reading = 6.50 + 0.38 = 6.88 mm
Corrected actual reading = Observed - Zero Error = 6.88 - (-0.02) = 6.90 mm (or 0.690 cm)
Marking Allocation: C1 for observed reading (6.88 mm), C1 for zero error correction, A1 for final answer 6.90 mm with units. (3 Marks)
Q2.
Kinetic Theory: Matter is made up of continuous tiny particles in constant random motion.
Evaporation explanation: High kinetic energy molecules escape from the liquid surface, leaving behind lower kinetic energy molecules, thereby reducing average kinetic energy and causing temperature drop/cooling.
Marking Allocation: B1 for Kinetic Theory statement, B1 for escaping energetic molecules, B1 for reduced average kinetic energy causing cooling. (3 Marks)
Q3.
Taking moments about the pivot (70 cm mark):
Clockwise moment = Mass M x distance = M x (90 - 70) = 20 M
Anticlockwise moment = Weight of rule (120 g) x distance = 120 x (70 - 50) = 2400 g·cm
This document is professionally prepared and verified for Form 3 (Secondary (8-4-4)) • Term 3.
- Competency-driven teacher inquiry models
- Guiding questions for active learner engagement
- Real-life problem-solving applications
- Formative & summative assessment indicators
- Performance levels (Exceeding, Meeting, Approaching)
- Practical assessment task breakdowns