177 prompts matching "How a rocket accelerates by expelling mass"
Real-life Nigeria: Transformers in Nigeria's power transmission network
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Physics at work: Why electricity is transmitted at high voltage
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Worked example: Writing the nuclide notation for a given atom
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Practice set: The Bohr model and electron energy levels
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Exam prep: The models of the atom compared, from Thomson to Bohr
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Real-life Nigeria: The nucleus as the source of nuclear energy
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Worked example: Writing an equation for alpha decay and for beta decay
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Exam prep: The cloud chamber and the photographic plate as detectors
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Spot my mistake: Background radiation, and allowing for it
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Real-life Nigeria: The hazards of radiation and the precautions taken against them
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Practice set: The decay constant and the activity of a source
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Spot my mistake: Assuming a sample decays completely after two half-lives
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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 rotation and the revolution of the earth
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Practice set: The seasons, and what produces them
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Exam prep: The earth's gravitational field and its effects
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Spot my mistake: The greenhouse effect and the ozone layer
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Real-life Nigeria: Why the earth is able to support life
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Worked example: Calculating the orbital period of a planet
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