457 prompts matching "Explaining a convection effect as conduction"
Exam prep: Centripetal force and centripetal acceleration
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Real-life Nigeria: Circular motion in Nigerian daily life
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Physics at work: Forces in engineering and construction
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Quiz: Sorting given quantities into scalars and vectors
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Let me explain: Representing a vector by a directed line segment
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Practice set: Adding vectors by the triangle rule
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Exam prep: Resolving a vector into its components
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Real-life Nigeria: Vectors in navigation and in sport
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Physics at work: Vector work in engineering design
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Quiz: Calculating the work done by a force
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Let me explain: The conditions under which no work is done
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Practice set: What energy is, and the forms it takes
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Exam prep: The joule, and the units of work and energy
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Physics at work: Energy accounting in Nigerian industry
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Quiz: Calculating power from work and time
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Let me explain: The watt and the kilowatt-hour
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Practice set: Efficiency, and why no machine is perfect
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Exam prep: Calculating the efficiency of a machine
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Spot my mistake: Confusing power with energy
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Real-life Nigeria: The power ratings of Nigerian household appliances
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