A guide to the seven practicals that must be included in the SBA: aim, apparatus, measurements, graph or calculation, and common errors for each, plus keeping a practical workbook.
5 narrated scenes. Press play, listen and read along — the points appear as they are explained. Use ‹ Prev / Next › or the scene bar to jump to any scene.
Every one of these seven practicals can appear in Paper 02, Paper 032 and your SBA. Master the method once and you earn marks three times.
Narration uses your device’s built-in voice. No sound? Switch to “Captions only” — the captions advance on their own.
Copy these into your notebook in your own words — that is how they stick.
Pendulum; momentum/conservation of energy; specific heat capacity/latent heat; refraction; series and parallel circuits; I–V relationships; radioactive decay (simulation).
T² against L; g = 4π²/gradient.
Total momentum before = after.
c = VIt ÷ (mΔθ); heat loss makes c too large.
l = Pt ÷ m.
n = sin i ÷ sin r.
Series I same; parallel V same; resistor linear, lamp curved, diode one-way.
Complete, dated and corrected; available for moderation.
3 quick games on this lesson. Earn XP and badges as you play — your best score for each game is saved. Games are for practice and do not change your exam readiness. More games in the Physics Arcade.
8 items modelled on real CSEC Paper 1 questions. Choose one answer for each, then check. Aim for 80% or better. Work each item on paper first.
Write full answers, then reveal the mark scheme and tick the points you earned (19 marks in total). Show all your working — method marks count. Your answers are saved on this device.
Question 1 [19 marks]
Use your knowledge of the required practicals.
(a) (a) State the seven required practicals. [4]
(b) (b) For the pendulum, state the graph that gives a straight line and how g is found from its gradient. [3]
(c) (c) For the electrical method of specific heat capacity, write the equation for c and state two precautions. [4]
(d) (d) For the refraction practical, state the equation for the refractive index and the graph to plot. [3]
(e) (e) State the I–V graph shape for a resistor, a filament lamp and a diode. [3]
(f) (f) State two things that must be in a good practical workbook. [2]
Everything in this lesson is based on these parts of the CXC syllabus and papers.