500 prompts matching "Let me explain: Why no machine reaches one hundred per cent efficiency"
Worked example: Calculating refractive index from measured angles
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Exam prep: Total internal reflection and the critical angle explained
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Real-life Nigeria: Reducing friction in Nigerian machinery
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Worked example: Finding acceleration from a velocity-time graph
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Spot my mistake: Pairing forces acting on the same body as action and reaction
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Physics at work: Dynamics in vehicle and machine design
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Real-life Nigeria: Crumple zones and safety in Nigerian vehicles
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Worked example: Calculating the mechanical advantage of a lever
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Real-life Nigeria: Simple machines on Nigerian farms and in workshops
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Physics at work: Machine design and maintenance as work
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Exam prep: The anomalous behaviour of water between zero and four degrees
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Worked example: Explaining the heating of a room by convection
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Spot my mistake: Claiming that radiation needs a medium
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Spot my mistake: Assuming pressure depends on the volume of liquid
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Quiz: Luminous and non-luminous bodies
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Worked example: Finding the number of images formed by two inclined mirrors
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Worked example: Finding refractive index from a pair of measured angles
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Spot my mistake: Applying Snell's law with the two media the wrong way round
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Worked example: Explaining a described capillarity observation
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Worked example: Explaining a described interference pattern
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