459 prompts matching "Quiz: Threshold frequency and work function"
Spot my mistake: Assuming friction always opposes useful motion
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Practice set: Finding distance from the area under a graph
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Spot my mistake: Using an equation of motion with the wrong sign for deceleration
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Practice set: Weight as the force of gravity acting on a mass
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Practice set: The principle of conservation of linear momentum
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Spot my mistake: Ignoring direction when adding momenta
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Exam prep: The environmental effects of different energy sources
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Spot my mistake: Describing energy as being used up
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Spot my mistake: Assuming a machine can be one hundred per cent efficient
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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: Forgetting to convert units before an expansivity calculation
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Spot my mistake: Claiming that radiation needs a medium
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Exam prep: The conditions that make a body stable
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Spot my mistake: Confusing the centre of gravity with the centre of a shape
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Spot my mistake: Assuming pressure depends on the volume of liquid
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Spot my mistake: Confusing the umbra with the penumbra
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Exam prep: Ray diagrams for a concave mirror
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Spot my mistake: Drawing the reflected ray on the wrong side of the normal
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Spot my mistake: Applying Snell's law with the two media the wrong way round
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