250 prompts matching "What a machine is, and what it does"
Quiz: Brownian motion and what it demonstrates
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Spot my mistake: Capillarity, and why liquids rise in narrow tubes
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Practice set: Acceleration due to gravity and how it is measured
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Spot my mistake: Magnetic screening and how it is achieved
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Real-life Nigeria: The electromagnet and the uses it is put to
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Exam prep: The unit of charge and the quantisation of charge
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Quiz: Ohm's law and how it is stated
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Real-life Nigeria: Resistors and rheostats in practical circuits
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Quiz: Oersted's experiment and what it showed
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Worked example: The strength of an electromagnet and what affects it
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Quiz: The Rutherford scattering experiment and what it showed
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Let me explain: The earth's magnetic field and what causes it
I have just studied the earth's magnetic field and what causes it in my SS2 Physics class.
Spot my mistake: The projector and how it throws an enlarged image
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Spot my mistake: Magnetic flux and magnetic flux density
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Spot my mistake: Confusing Fleming's left-hand rule with the right-hand rule
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Spot my mistake: Background radiation, and allowing for it
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Spot my mistake: White dwarfs, neutron stars and black holes
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Physics at work: Why electricity is transmitted at high voltage
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Let me explain: Infrared, visible light and ultraviolet
I have just studied infrared, visible light and ultraviolet in my SS2 Physics class. Let m
Physics at work: Mobile telephony, satellites and fibre optics
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