463 prompts matching "Using dimensions to spot a wrong formula"
Physics at work: Where vector work is used in Nigerian engineering
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Spot my mistake: Assuming friction always opposes useful motion
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Exam prep: The three equations of motion, and when to use each
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Exam prep: Circular motion and the force directed towards the centre
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Spot my mistake: Pairing forces acting on the same body as action and reaction
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Real-life Nigeria: Newton's laws in Nigerian road safety
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Exam timing: A timed set of problems on Newton's laws
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Exam prep: Collisions in one dimension, elastic and inelastic
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Spot my mistake: Ignoring direction when adding momenta
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Spot my mistake: Describing energy as being used up
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Physics at work: Careers in Nigeria's energy sector
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Spot my mistake: Assuming a machine can be one hundred per cent efficient
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Worked example: Calculating the heat needed to boil a mass of water
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Exam prep: The factors affecting the rate of evaporation
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Spot my mistake: Assuming evaporation happens only at the boiling point
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Spot my mistake: Claiming that radiation needs a medium
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Spot my mistake: Assuming pressure depends on the volume of liquid
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Exam prep: The critical angle and the condition for total internal reflection
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Spot my mistake: Mixing up the sign convention for a diverging lens
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Physics at work: Optometry and lens manufacture
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