Physics Level 4 case studies
Physics Level 4 · Put your knowledge to work in context.
National 5 Practical Cookery is a Scottish national qualification in the senior phase of secondary school, delivered by centres and awarded nationally. It suits learners who want to develop practical food preparation and cookery skills alongside the knowledge that underpins safe, hygienic and organised work in a kitchen. The course is assessed in two components. A question paper tests the knowledge and understanding side of cookery, and a practical activity requires candidates to plan, prepare, cook and serve dishes under timed conditions, with marks awarded for techniques, cookery processes, tasting and seasoning, and service details. The Physics Level 4 case studies are 5 cases and about 1,899 words.
1The Overloaded Lift Cable
A school's stage rigging uses a single steel cable to raise a 180 kg lighting bar. The cable's rated breaking stress is 5.0 × 10^8 Pa and its cross-sectional area is 2.4 mm².
405 words, about 2 min2The Dimming Bulb in a Series Circuit
Students build a circuit with a 12 V battery of negligible internal resistance, a 6 Ω resistor, and a small lamp rated 12 V, 24 W, all in series. When switched on, the lamp glows dimly.
392 words, about 2 min3The Trolley Down the Ramp
A practical group investigates acceleration using a trolley released from rest on a ramp of length 1.20 m. They time five runs with a stopwatch, obtaining 1.42, 1.38, 1.55, 1.40, and 1.39 s.
376 words, about 2 min4The Cooling Curve Experiment
Students heat a 200 g aluminium block to 90 °C and place it in 150 g of water at 20 °C in an insulated cup. They record the mixture reaching 38 °C.
389 words, about 2 min5The Lens Focal Length Practical
A student uses a converging lens to form an image of a distant window on a screen and measures the lens-to-screen distance as 15.2 cm. They then place a candle 25.0 cm from the lens and move the screen to find a sharp image, measuring 38.5 cm.
337 words, about 2 min