148 prompts matching "A timed lens problem set"
Worked example: Calculating the mass remaining after a number of half-lives
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Real-life Nigeria: Radioisotopes in Nigerian medicine and agriculture
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Worked example: The rotation and the revolution of the earth
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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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Real-life Nigeria: Eclipses of the sun and of the moon explained
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Worked example: The luminosity and the brightness of a star
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Real-life Nigeria: How starlight tells us what stars are made of
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Worked example: Calculating a distance in light years
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Real-life Nigeria: Telescopes, and how we observe the universe
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Worked example: The earth and the solar system reviewed
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Exam timing: Working an SS2 Physics paper against the clock
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Real-life Nigeria: The SS2 Physics topics I still need to practise
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Exam prep: Snell's law and the refractive index
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Spot my mistake: When light is reflected wholly back inside a denser medium
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Exam prep: The camera, and how it compares with the eye
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Spot my mistake: The projector and how it throws an enlarged image
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Exam prep: Calculating frequency and wavelength from the wave speed
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Exam prep: The frequency, wavelength and amplitude of a sound wave
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Spot my mistake: Reflection of sound and the formation of echoes
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