488 prompts matching "How light travels along an optical fibre"
Exam prep: The joule, and the units of work and energy
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Real-life Nigeria: Work done in everyday Nigerian tasks
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Physics at work: Energy accounting in Nigerian industry
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Practice set: Efficiency, and why no machine is perfect
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Real-life Nigeria: The power ratings of Nigerian household appliances
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Physics at work: Power and efficiency in Nigerian generators
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Practice set: The conservation of mechanical energy
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Exam prep: Energy transformations in a falling body
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Real-life Nigeria: Energy conversion in a Nigerian hydro-electric dam
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Physics at work: Mechanical energy in machines and vehicles
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Worked example: Scalars and vectors reviewed
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Practice set: Work, energy and power reviewed
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Real-life Nigeria: Preparing a revision plan for the SS1 first term
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Physics at work: Physics in the careers open to a Nigerian student
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Practice set: Latent heat of fusion and latent heat of vaporisation
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Exam prep: Calculating the heat absorbed during a change of state
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Real-life Nigeria: Heat energy in Nigerian cooking and refrigeration
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Worked example: Calculating the expansion of a metal rod
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Practice set: The anomalous expansion of water
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Exam prep: Allowing for expansion in bridges, rails and pipes
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