172 results for "unit".

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• Exam (40 questions)

A set of MCQ designed to help Level 2 Engineering students prepare/practice for the on-line GOLA test that is used to assess the C&G 2850, Level 2 Engineering, Unit 202: Engineering Principles.

• Exam (40 questions)

A set of MCQ designed to help Level 2 Engineering students prepare/practice for the on-line GOLA test that is used to assess the C&G 2850, Level 2 Engineering, Unit 202: Engineering Principles.

• SDT consistent units
Question

No description given

• Question

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.

• Question

Converting between metres (m) and centimetres (cm).

• Question

Given mass and volume of an object in SI units, calculate its density. The units are given at different orders of magnitude.

• Question

Convert a metric measurement to another order of magnitude, e.g. g to kg.

• Question

• Question in How-tos

Shows how the \text command is rendered using the plain-text font, not the LaTeX one. Useful for displaying units of measurement and English words inside equations.

• Question in How-tos

A couple of different ways of showing the correct answer to a single part as soon as the student submits an answer. One way allows the student to change their answer, while the other locks the part.

A third part includes a "reveal answers to this part" button, which allows the student to choose to reveal the answer to the part.

Think very carefully before using this: by revealing the answer, you are removing the opportunity for the student to later on realise they've got that step wrong, as a consequence of some further work. It's often possible to use adaptive marking to use the student's answer in place of the correct answer in later parts.

• Question

Unit normal vector to a surface, given in Cartesian form.

• Question

Find a unit vector orthogonal to two others.

Uses $\wedge$ for the cross product. The interim calculations should all be displayed to enough dps, not 3,  to ensure accuracy to 3 dps. If the cross product has a negative x component then it is not explained that the negative of the cross product is taken for the unit vector.

• Question

Find the unit vector parallel to a given vector.

Interim calculations in Advice should be presented in enough accuracy to ensure that the final calculations are to 3dps.

• Question

Elementary operations on vectors; sum, modulus, unit vector, scalar multiple.

• Question

Cauchy's integral theorem/formula for several functions $f(z)$ and $C$ the unit circle.

• Question

An object moves in a straight line, acceleration given by:

$\displaystyle f(t)=\frac{a}{(1+bt)^n}$. The object starts from rest. Find its maximum speed.

• Question

Finding the confidence interval at either 90%, 95% or 99% for the mean given the mean and standard deviation of a sample. The population variance is not given and so the t test has to be used. Various scenarios are included.

• Question

This question assesses the students ability to calculate and convert between different types of compound units, including rates of pay, speed and unit pricing.

• Question

Calculate a speed in m/s given distance and time taken, then convert that to km/hour

• Question

Given the cost of hiring a room for a given number of hours, compare with competing prices given per hour and per minute.

• Units of measurement
Exam (12 questions)

A collection of questions on working with units of measurement, mainly in the SI/metric system.

Several 'real-world' examples.

• Question

Calculate the volume of different 3D shapes, given the units and measurements required. The formulae for the volume of each shape are available as steps if required.

• Question

Convert from km to metres and miles, and miles to km.

• Question

Convert a height given in feet and inches into cm and then metres.

• Question

Convert figures for car engine sizes between cc (cm^3), litres, and m^3.

• Question

Convert weights of babies between kg and lb and oz.

• Question

This question assesses the student's ability to use some given information involving two different units of measurement to rewrite the information as a compound measure.

• Question

This question tests the students ability to calculate the area of different 2D shapes given the units and measurements required. The formulae for the areas are available if required but students are encouraged to try to remember them themselves.

The shapes are: a rectangle, a parallelogram, a right-angled triangle, and a trapezium.

Author of gif: Picknick
https://commons.wikimedia.org/wiki/File:Parallelogram_area_animated.gif
$x$ is given and (sin(x),cos(x)) is plotted on a unit circle.  Then the student is asked to determine sin(y) and cos(y), where y is closely related to x (e.g. y=-x, y=180+x, etc.)