250 prompts matching "What a machine is, and what it does"
Quiz: The law of universal gravitation as Newton stated it
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Spot my mistake: The variation of g over the earth's surface
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Quiz: Magnetic and non-magnetic materials
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Practice set: The domain theory of magnetism
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Real-life Nigeria: Uses of magnets in Nigerian homes and industry
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Quiz: Magnetic field lines and their properties
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Quiz: Optical instruments and the electromagnetic spectrum reviewed
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Practice set: The gravitational field reviewed
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Spot my mistake: The errors most often made in first-term SS2 Physics
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Real-life Nigeria: Linking waves, sound and light together
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Quiz: Charging by friction, by contact and by induction
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Worked example: Coulomb's law and the force between two charges
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Quiz: Conventional current and electron flow
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Worked example: Calculating charge from current and time
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Real-life Nigeria: The maintenance and charging of a car battery
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Quiz: Current in a series circuit
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Worked example: Calculating the effective resistance of resistors in series
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Practice set: Solving a series circuit problem from end to end
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Quiz: Current in a parallel circuit
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Worked example: Calculating the effective resistance of resistors in parallel
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