A Keynote¹ presentation for introducing students to handling the most common experimental uncertainties in science measurements (addition/subtraction, multiplication/division and indices). Topics covered are: types of error (systematic and random), absolute and percentage uncertainty, and rules for determining uncertainty in calculated values. There is a sample of three exam questions - one for each rule. The full version of the slideshow has in addition to the above: All five uncertainty calculation rules – multiplication by coefficients and calculation with complex functions (trig and logs). An explanation of uncertainty in handheld stopwatches. More examples - notably an example question with full worked solution for each calculation rule. More exam questions - a total of three questions per rule. ¹ Keynote works on iPhones, iPads, Macs and in many web browsers. Check your device against Apple’s latest guidance.

Take your Google Classroom to the next level with a cool science-themed animated banner! Seven colours of the visible spectrum glide into view with wavelengths displayed. Sadly you’ll need to download it before you see the animation. An I ♥ Science Resource by Wonky Logic

A worksheet to enable students to analyse experimental data from the specific heat capacity experiment. I’ve made a video of the experiment here youtu.be/CJTfyD7aiL4 . The data collected in the video can be used to complete a table and answer a series of calculation questions in order to determine c for copper and aluminium. Copper and aluminium are handled on separate pages. There are links from the PDF directly to the relevant part of the data collection in the video for anyone using the worksheet electronically. There are solutions at the end. An excellent extension activity is the heat capacity evaluation worksheet. Perfect for A-level physics students on any specification. This worksheet is ideal for home learning since it has an accompanying video explanation of the experiment, the analysis of results and solutions to all questions are included in the document.

Help your students practice recall of graph shapes and features across most physics subject areas (A-level and equivalent). Included is a PDF that has blank graph grids and labelled axes for students to draw onto. The introduction and solutions are included in the PDF document; printing them is optional. A differentiated version of this activity is available for purchase with included Keynote¹ slideshow introduction and solutions (the solutions are animated to give the option of an interactive activity with your students - draw the solution, compare the textbook answer and discuss). Graphs included in this activity: Radioactive Decay Capacitor Decay Binding Energy Binding Energy per Nucleon Gravitational Field Strength v. Distance Filament Bulb I-V Characteristic Gravitational field strength v. 1/distance² Stress-Strain Profile of Copper R-T Relationship for Metal Conductor Photoelectric Effect ¹ Keynote is presentation software that works on Macs, iOS and iPadOS devices.

A simple presentation to aid explanation of the role of radiation intensity in the photoelectric effect once the threshold frequency of the metal has been exceeded. Students often misunderstand the inability of increased intensity to trigger the photoelectric effect and therefore believe it has no role. This presentation is a visual aid to help the teacher show that it has a role in controlling the number of photons arriving per unit time. This presentation compares a source of low intensity blue with high intensity blue light (where blue light has a frequency above the threshold frequency). This is a Keynote presentation (macOS, iPadOS and iOS). Useful for all A-Level physics specifications. The photoelectric effect is an important experiment in physics that proves that light behaves like a particle, it was a founding experiment for quantum theory. Einstein won his Nobel prize for his work on explaining the photoelectric effect.

A reference table to help students memorise measurements that occur in a wide range of physics practical work and the associated measuring instruments. Most exam series include questions on designing an experiment, a key part of which is to state the measurements to take and the instruments to use.

Live up your Google Classroom with two animated banners (GIFs) for Google Classroom. One shows an elastic collision between different sized pucks. The other shows an inelastic collision between different sized pucks. ψ Art by Wonky Logic

A spreadsheet that can be used to analyse the data obtained in the experiment to investigate light intensity and distance like in this video. The spreadsheet automatically calculates the power of the light source and percentage difference with the manufacturer’s rating from inputted distance and light intensity data. The data plots are added to a carefully formatted graph. A line of best fit is automatically plotted. The gradient of the line is automatically calculated from the data plots and the value of the source power is calculated by using the gradient. This spreadsheet is perfect for rapidly analysing experimental data. A second table calculates proportionality constants so that the user can very quickly check if their data obeys an inverse square law. This is a Numbers spreadsheet. It is possible to convert Numbers spreadsheets to Excel files but I cannot guarantee an easy to use output since the tables may be converted to separate worksheets in the Excel file.

A worksheet to enable students to analyse experimental data from the experiment to determine the acceleration of free fall with a light gate. I’ve made a video of the experiment here youtu.be/yKVjlnSOu7s (available from 20 Aug). The data collected in the video can be used to complete a table, plot a graph and answer a series of analysis questions in order to determine the acceleration of free fall. There are links from the PDF directly to the relevant part of the data collection in the video for anyone using the worksheet electronically. There are solutions at the end. Perfect for A-level physics students on any specification. This worksheet is ideal for home learning since it has an accompanying video explanation of the experiment, the analysis of results and solutions to all questions are included in the document.

A Keynote presentation to aid teaching students how to use Vernier Calipers and Micrometers. Learning how to use vernier calipers and micrometers is an important part of physics A-Level, and engineering courses. The presentation includes a labelled diagram of a vernier caliper, followed by two high quality diagrams of vernier calipers showing different measurements. The process is repeated with a labelled diagram of a micrometer and diagrams of a micrometer showing different measurements. Keynote is presentation software that works on macOS, iOS and iPadOS devices. The worksheet is a PDF. **There is a premium version of this activity available as a presentation with an accompanying worksheet. ** Each device has four different measurements in that version. The measurements shown in the premium version are different to this activity so if you decide to buy the premium version you can easily increase the number of measurements you work through with your students by copying them across.

Copy of the spreadsheet I used to analyse the Young’s Modulus experiment in this video. Now included: a version 2 of the spreadsheet with improved formatting. But note that in order to achieve the neater formatting it is necessary to use more advanced formulae which will make it harder for spreadsheet novices to understand the calculations (especially around indices). Both versions are included to give the user the option of which one to use. This is a Numbers spreadsheet. It is possible to convert Numbers spreadsheets to Excel files but I cannot guarantee an easy to use output since the tables may be converted to separate worksheets in the Excel file. Suitable for most A-Level Physics specifications.

Copy of the spreadsheet I used to analyse the experiment to determine the acceleration of free fall in this video. The spreadsheet automatically calculates final velocity of the weighted card from inputted electronic timer readings. The data plots are added to a carefully formatted graph. A line of best fit is automatically plotted. The gradient and y-intercept of the line are automatically calculated from the data plots and the value of acceleration of free fall is calculated from the gradient. This spreadsheet is perfect for rapidly analysing experimental data. This is a Numbers spreadsheet. It is possible to convert Numbers spreadsheets to Excel files but I cannot guarantee an easy to use output since the tables may be converted to separate worksheets in the Excel file. Suitable for most A-Level Physics specifications.

A spreadsheet that can be used to analyse the data obtained in the experiment to determine the decay constant of an isotope like in this video. The spreadsheet automatically calculates the decay constant and initial activity from inputted time and activity readings using a natural log analysis. The data plots are added to a carefully formatted graph. A line of best fit is automatically plotted. The gradient and y-intercept of the line are automatically calculated from the data plots and the value of the decay constant is calculated by using the gradient. This spreadsheet is perfect for rapidly analysing experimental data. The initial activity is calculated by using the y-intercept, this is a useful indicator of the accuracy of the final value. This is a Numbers spreadsheet. It is possible to convert Numbers spreadsheets to Excel files but I cannot guarantee an easy to use output since the tables may be converted to separate worksheets in the Excel file. Suitable for most physics specifications that cover nuclear physics.

Copy of the spreadsheet I used to analyse the resistivity experiment in this video. This is a Numbers spreadsheet. It is possible to convert Numbers spreadsheets to Excel files but I cannot guarantee an easy to use output since the tables may be converted to separate worksheets in the Excel file.

A spreadsheet that can be used to analyse the data obtained in the experiment to investigate the transformers turns ratio equation like in this video. The spreadsheet automatically calculates the turns ratios and potential difference ratios from the inputted turns and p.d. values. The calculated ratios are added to two carefully formatted graphs - a column chart and a line graph. A line of best fit is automatically plotted. The linear correlation of the line is automatically calculated from the line graph. This spreadsheet is perfect for rapidly analysing experimental data. This is a Numbers spreadsheet. It is possible to convert Numbers spreadsheets to Excel files but I cannot guarantee an easy to use output since the tables may be converted to separate worksheets in the Excel file.

**This is a free Numbers¹ spreadsheet to help teachers having to set multiple assessments for their students some of which are used to calculate a centre assessed grade. ** You can download this for free and without an account here The spreadsheet accomplishes the following tasks: Ensures consistency among multiple assessments each with unique numbers of raw marks and requiring their own unique grade boundaries. Very easy grade boundary adjustment by use of stepper cells. Selects the top three UMS scores from the assessments and calculates an average UMS score. Gives immediate feedback on the UMS and grade distributions to aid teachers adjusting grade boundaries for a specific distribution outcome (usually close to a normal distribution). Gives automatic statistical feedback using a t test and chi squared test to enable teachers to quickly compare their cohort’s performance to exam results of a previous cohort (to facilitate consistency if required). Adding benchmark data is optional. There are some brief instructions written into the Overview sheet and Paper 1 sheet to enable you to get started quickly. This version supports up to 50 students, six assessments (papers), it selects the top three results. If you’re comfortable making changes to formulae you are welcome to do so. If you do make changes you are free to give away your changed version but not for sale. If I can I will produce a tutorial video. If you’d like to request a feature change or spot any errors contact me via my website wonkylogic.co. Also available for free here ¹ Numbers is spreadsheet software made by Apple. It runs on Macs, iPads, iPhones and most web browsers (if you have a free Apple ID). It may be possible to export this to an Excel workbook but I couldn’t guarantee a fully functioning output. If I have time I will export it and ensure it all works - but no guarantees on that I’m afraid. Updated 28 April - additional guidance notes on use of t-test and Chi Squared test

An activity worksheet for students and Keynote¹ presentation with answers. Four different elastic collisions are presented and students have to apply conservation of momentum and conservation of kinetic energy to the collision to determine the correct outcome. The problems range in difficulty from straightforward to advanced problem solving. This is a free lite version of a premium product which includes the same task differentiated. In the differentiated version the same collisions are the basis of the question but there are multiple possible outcomes that students evaluate. The worksheet should prove self explanatory for students. The presentation is designed to aid the teacher’s explanation but does not show all working. ¹ The presentation is made with Keynote which is Apple’s presentation software. It can be exported to PowerPoint but I don’t guarantee the output will look and operate in the same way. Keynote is an app available on macOS, iOS and iPadOS for free with most new or new-ish Apple devices. You have my permission to try exporting into PowerPoint for your personal use in teaching your classes.

An activity to guide students through the analysis of real planetary data (orbit radius and period) to see if it is consistent with Kepler’s Third Law. Includes: A worksheet (PDF) for students with complete instructions. This can be issued to students as independent work in class or at home. Space is provided for working out and writing answers to the questions. A Numbers¹ spreadsheet with solutions. There is an Incomplete tab, which can be projected whilst introducing the activity if desired. The Complete tab has all the solutions to aid the teacher as they work through it with the class. Solutions include results computed directly from the data using spreadsheet formulae and a separate table in which results from a hand drawn graph can be inputted and computed. The Printable tab has the solutions in a printable format if needed. The Incomplete and Printable tabs from the spreadsheet are also included as separate PDFs for anyone unable to use the Numbers app. ¹ This is a Numbers spreadsheet. It is possible to convert Numbers spreadsheets to Excel files but I cannot guarantee an easy to use output since the tables may be converted to separate worksheets in the Excel file.

Activity for practicing plotting graph data points, drawing a line of best fit and calculating a gradient. The first page includes the activity for students to complete and the second page includes solutions to the questions. Suitable for AQA and OCR Physics A AS-Level and A-Level specifications. (7407, 7408, H156, H556) This is part of a series of worksheets for practicing different graph skills. Graphs Skills worksheets 1 & 2 are available for free, subsequent worksheets are premium resources. This worksheet is great for home learning since it has solutions to all questions included in the document and it is part of a series that gradually builds up a range of graphing techniques.

A Numbers¹ spreadsheet that provides teachers with an attractive interface to record and analyse students’ grades. Capable of tracking results for up to three classes in the same subject (and can easily be edited to extend for more classes). Scores can be recorded from two separate sections independently if desired. Grade boundaries are set per assessment in the designated table. Graphs show % scores in 5% range categories and the grade distribution. In the main table achieved grades are compared with target grades and class average deviation from targets are also computed. If you need to track the progress of your students then I suggest you check out the Assessment tracker spreadsheet here: https://www.tes.com/teaching-resource/resource-12617725 (a paid product). ¹ Numbers is spreadsheet software made by Apple, it opens with the Numbers app available for free with most recent iPhone / iPad / Mac devices also available with a free Apple ID for use in most web browsers.