323 prompts matching "A lens formula problem with sign convention"
Real-life Nigeria: Solar energy in Nigerian homes
Act as my SS1 Physics tutor. Show me where solar energy in Nigerian homes turns up in Nige
Physics at work: Careers in Nigeria's energy sector
Act as my SS1 Physics tutor. Explain which Nigerian jobs and industries depend on careers
Teach me: What a machine is, and what it does
You are my personal SS1 Physics tutor. Teach me what a machine is, and what it does, using
Quiz: What mechanical advantage, velocity ratio and efficiency each measure
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Worked example: Calculating the mechanical advantage of a lever
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Real-life Nigeria: Simple machines on Nigerian farms and in workshops
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Teach me: Thermal energy, and how it differs from temperature
You are my personal SS1 Physics tutor. Teach me thermal energy, and how it differs from te
Quiz: The melting point and the boiling point
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Worked example: Calculating the heat needed to boil a mass of water
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Real-life Nigeria: Cooling by evaporation in Nigerian daily life
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Physics at work: Refrigeration and air conditioning as trades
Act as my SS1 Physics tutor. Explain which Nigerian jobs and industries depend on refriger
Teach me: Why matter expands when it is heated
You are my personal SS1 Physics tutor. Teach me why matter expands when it is heated, usin
Quiz: The expansion of solids, liquids and gases compared
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Worked example: Calculating the increase in length of a heated rod
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Real-life Nigeria: Expansion gaps in Nigerian bridges and railways
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Physics at work: Allowing for expansion in construction work
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Teach me: The three ways in which thermal energy travels
You are my personal SS1 Physics tutor. Teach me the three ways in which thermal energy tra
Quiz: Conduction and the particles that carry it
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Worked example: Explaining the heating of a room by convection
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Teach me: What the centre of gravity is
You are my personal SS1 Physics tutor. Teach me what the centre of gravity is, using a rea