1,315 prompts matching "IGCSE Additional Maths Y10: Choosing the substitution that reveals the quadratic"
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WAEC Prep: The simple pendulum as an example of simple harmonic motion
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Learn: Hooke's law, and what the modulus of elasticity means
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Worked Example: The tension in a stretched elastic string
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Quiz: The extension of a spring under a given load
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Practice: The difference between an elastic string and a spring in compression
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Explain Back: The elastic potential energy stored in a stretched string
I have just studied the elastic potential energy stored in a stretched string in my SS3 Fu
Final Revision: The greatest extension reached by a falling particle on an elastic string
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Spot my mistake: Assuming AB and BA give the same matrix
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Spot my mistake: Negating the leading diagonal and swapping the other two entries when inverting a 2 by 2 matrix
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Spot my mistake: Treating the kilogram and the kilogram weight as the same unit
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Spot my mistake: Adding the magnitudes of concurrent forces to get the magnitude of their resultant
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Spot my mistake: Assuming moments may only be taken about the pivot and never about another point
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Spot my mistake: Treating the rth term of a binomial expansion as the one carrying the rth power
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Spot my mistake: Treating the variance of a binomial distribution as its standard deviation
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Spot my mistake: Assuming the normal curve meets the horizontal axis at its points of inflexion
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Spot my mistake: Treating the dot product of two vectors as another vector
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Spot my mistake: Differentiating a product by multiplying the derivatives of its two factors
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Spot my mistake: Applying the power rule to the integral of one over x
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Spot my mistake: Reporting an area computed below the x-axis as a negative distance travelled
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Spot my mistake: Leaving out the constant of integration when velocity is found from acceleration
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