250 prompts matching "Let me explain: Refractive index and how it is defined"
Real-life Nigeria: The electromagnet and the uses it is put to
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Worked example: Calculating charge from current and time
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Real-life Nigeria: Resistors and rheostats in practical circuits
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Spot my mistake: Overloading a socket, and what follows from it
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Worked example: The strength of an electromagnet and what affects it
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Spot my mistake: Confusing Fleming's left-hand rule with the right-hand rule
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Real-life Nigeria: Electric motors in Nigerian homes and industry
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Worked example: Writing an equation for alpha decay and for beta decay
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Spot my mistake: Background radiation, and allowing for it
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Practice set: The decay constant and the activity of a source
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Real-life Nigeria: Radioisotopes in Nigerian medicine and agriculture
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Physics at work: Nuclear energy, its uses and its dangers
Act as my SS2 Physics tutor. Explain which Nigerian jobs and industries depend on nuclear
Worked example: The luminosity and the brightness of a star
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Spot my mistake: White dwarfs, neutron stars and black holes
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Practice set: The Big Bang theory and the evidence for it
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Real-life Nigeria: Telescopes, and how we observe the universe
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Practice set: Refraction of light and the change of speed between media
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Exam prep: The frequency, wavelength and amplitude of a sound wave
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Exam prep: Noise and the effect it has on health
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Exam prep: Surface tension and the effects it produces
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