10946 results.
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Simplifying expressions from $\frac{x^mx^n}{x^p}$ to $x^{m+n-p}$.
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Question in UiT forkurs
Factorising polynomials using the highest common factor.
Adapted from 'Factorisation' by Steve Kilgallon.
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This easy exam is intended to be used by administrators to check the integration of Numbas with a leaarning environment.
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Question in CHY1201 - SpectroscopyThe reduced masses are pre-calculated for this question and included in a list. It would be more elegant to program Numbas to permute atoms together to generate diatomic molecules while constraining the permutations to those which are chemically/physically reasonable, so as to allow calculation of each reduced mass directly from the atomic masses- but organising this with high computational efficiency might be a significant programing task (add to "to do" list).
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Question in CHY1201 - Spectroscopy
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Question in CHY1201 - Spectroscopy
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Question in CHY1201 - Spectroscopy
Question requires students to interchange units of Hz with MHz, GHz, THz. Question is not very efficient at present- frequencies spanning many orders of magnitude are generated by variables in a clumsy way. Could be improved by having frequency generated by a 10^((random(1000..4000)/1000) variable instead, for example.
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Question in CHY1201 - Spectroscopy
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Question in CHY1201 - SpectroscopyQuestion requires students to themselves calculate how many electrons are in the conjugated system for the molecules included in this question. As is standard for applications of the "particle in a box" model, the embedded assumption is that one electron is donated to the pi-system by each carbon within the conjugated chain. Students instructed to assume that there are 22 conjugated electrons in Beta-carotene.
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Exam (40 questions) in Skills Audits for Maths and Stats
Post Graduate Taught COM programmes
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Exam (40 questions) in Skills Audits for Maths and Stats
COM undergraduate courses
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Add three vectors by determining their scalar components, summing them and then resolving the rectangular components to find the magnitude and direction of the resultant.
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Exam (64 questions) in Skills Audits for Maths and Stats
Skills Audit for Maths and Stats for MAS003 SEFY students without a prerequisite of A-level Maths.
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Calculate the moment of a force about three points using Verignon' theorem. All forces and points are in the same plane.
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Find the sum of two couples in a plane.
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Find the moment of a couple formed by two equal and opposite forces.
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testing sin, cos, tan of random(0,90,120,135,150,180,210,225,240,270,300,315,330) degrees but in radians
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testing sin, cos, tan of angles that are negative or greater than 2pi radians that result in nice exact values.
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Equilibrium of two interacting particles.
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exact value of testing sin, cos, tan of angles that are negative or greater than 360 degrees that result in nice exact values.
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multiple choice testing sin, cos, tan of random(pi/6, pi/4, pi/3) radians
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multiple choice testing csc, sec, cot of random(pi/6, pi/4, pi/3) radians
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exact value of sin, cos, tan of random(0,90,120,135,150,180,210,225,240,270,300,315,330) degrees
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multiple choice testing csc, sec, cot of random(30, 45, 60) degrees
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multiple choice testing sin, cos, tan of random(30, 45, 60) degrees
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Determine a finite sum and a limiting sum of a geometric series written using sigma notation. I'm not sure how to eliminate rounding errors...
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Test whether a student knows the root test of a series, and how to use it. Series include those that the root test is inconclusive for. This question could be better in that it could go through the working of determining the limit but I hope to make a separate question which deals with that.
