221 prompts matching "Efficiency, and why no machine is perfect"
Quiz: Telling alpha, beta and gamma radiation apart
Act as my SS2 Physics tutor and quiz me on telling alpha, beta and gamma radiation apart.
Worked example: Writing an equation for alpha decay and for beta decay
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Practice set: The Geiger-Muller tube and how it detects radiation
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Exam prep: The cloud chamber and the photographic plate as detectors
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Real-life Nigeria: The hazards of radiation and the precautions taken against them
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Quiz: The decay curve, and reading a half-life from it
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Let me explain: The random nature of radioactive decay
I have just studied the random nature of radioactive decay in my SS2 Physics class. Let me
Practice set: The decay constant and the activity of a source
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Exam prep: Carbon dating and how it works
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Spot my mistake: Assuming a sample decays completely after two half-lives
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Physics at work: Nuclear energy, its uses and its dangers
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Quiz: The earth's atmosphere and the layers within it
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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.
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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Quiz: The planets and the order in which they orbit
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Practice set: Moons, asteroids and comets
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Exam prep: The origin of the solar system and the theories about it
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Real-life Nigeria: Eclipses of the sun and of the moon explained
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