464 prompts matching "Exam prep: Gravitational potential energy and escape velocity"
Physics at work: Machine design and maintenance as work
Act as my SS1 Physics tutor. Explain which Nigerian jobs and industries depend on machine
Quiz: The melting point and the boiling point
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Let me explain: Latent heat, and why temperature stays constant during a change of state
I have just studied latent heat, and why temperature stays constant during a change of sta
Worked example: Calculating the heat needed to boil a mass of water
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Practice set: Evaporation, and how it differs from boiling
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Physics at work: Refrigeration and air conditioning as trades
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Quiz: The expansion of solids, liquids and gases compared
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Let me explain: Linear expansivity and its definition
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Worked example: Calculating the increase in length of a heated rod
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Practice set: Cubic expansivity and superficial expansivity
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Real-life Nigeria: Expansion gaps in Nigerian bridges and railways
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Quiz: Conduction and the particles that carry it
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Let me explain: Convection currents and how they form
I have just studied convection currents and how they form in my SS1 Physics class. Let me
Worked example: Explaining the heating of a room by convection
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Practice set: Radiation, and the surfaces that emit and absorb best
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Physics at work: Insulation and building design in Nigeria
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Worked example: A balancing problem solved using the centre of gravity
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Practice set: Stable, unstable and neutral equilibrium
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Real-life Nigeria: Stability in Nigerian lorries and market stalls
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Physics at work: Stability in vehicle and structure design
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