Grade 8 Physics Lessons for Autumn 2024
Classes Tuesday 10.10-11.40 and Fri 12:30 -14.00
KEY CONCEPTS & VOCABULARY HERE
Additional sheets useful for studying for the tests| Week number | To cover: | Lesson content | Lesson resources and links | Homework |
| 33 | Forces are interactions between objects Forces are measured in newtons, N We write units in a precise way e.g. N, not n for newtons Units must be written like this or they will mean something else Measuring devices must be calibrated in order to measure accurately and correctly | What are forces - discussion. Examples of forces -eg gravity, friction, air resistance How big is a newton? Can a rubber band be useful to measure forces? Scales and measurements discussion | Sheet: Terms and conditions 8.1 ppt Tuesday lesson notes Friday lesson notes | Read the sheet from the lesson and complete this form |
| 34 | Friction | History of measurement: TED talk NASA and their unit error Using the spring balances to measure forces. Calibration. Types of friction Using Lego models pulled along friction blocks in order to measure static and dynamic friction, and to investigate if increasing surface area increases friction. | 8.2 ppt If you missed the lesson, this video explains the main concepts: friction Background info videos - friction friend or foe Lego experiment results' table spreadsheet | Look carefully at the results of your experiment - and answer in your note books: 1. which surface had the most friction? 2. does the surface area of the Lego matter? 3. is the force to start movement different from that to keep the object moving? |
| 35 | Forces and movement | Reviewing the friction experiment - repeating results, labeling data, accuracy. Resultant forces. Newton's 1st Law. Unchanging motion and steady speed or velocity. | PPT Newton I Inertia Tuesday lesson notes Friday lesson notes | Watch this video as preparation for next lesson. There is no written task with this homework. |
| 36 | Speed calculations Distance-time graphs Velocity time graphs Converting units of velocity: m/s to km/h and vice versa. | PPT The tortoise and the hare - 'speed' a real video! Usain Bolt 100m world record Kinematics of Usain Bolt's runs - detailed analysis Average speed cameras (single units) If you missed the lesson, There is a video for the lesson on this page If you need the password, it is on the 'Terms and Conditions' sheet. Also, this video on changing units might help you Tuesday lesson notes Friday lesson notes | Complete this sheet. Beware the mathematical trickery! Homework solution sheet | |
| 37 | No lesson Tuesday Friday: I was absent | |||
| 38 | Collecting data | Do tall people jump further? | Spreadsheet link for data processing TUESDAY FRIDAY If you need a gmail address use: physOIS2021@gmail.com Help sheet for data recording and graphs PPT Averaging using spreadsheets | This link - another video |
| 39 | Processing data Falling and terminal velocity | Sample data to process Using googlesheets to present data. Adding lines of best fit with Paint. Example graphs to which you can add lines of best fit Lesson notes Tuesday PPT Galileo's ball dropping experiment On the Moon On Earth in a vacuum Sky diver and forces from freefall Felix Baumgartner jump Diving gannets Paper airplanes and lift | ||
| 40 | Planning the paper helicopters investigation | Instruction sheet Help sheet for writing the report Writing frame (pdf) Writing frame as google doc - please save a copy or download it - do not edit the original file. | Complete the first two pages of the investigation sheet, including the section on variables and safety. | |
| 41 | | RESULTS SHEET FOR TUESDAY GROUP Results sheet for Friday group | No homework | |
| 42 | Complete the investigation - it is due in at the start of the lesson next week | |||
| 44 | Mass and weight | Mass and weight. What is weight? Weightlessness. RSI video Very old video clip on weightlessness in space start 9 minutes in - Fat Gustaf! Formula for weight W = m. g Lesson notes Tuesday Friday PPT | Get the report in/emailed. Then spend time getting your notes together for the test | |
| 45 | Acceleration | F= m.a What is acceleration ? Acceleration due to gravity, g. Calculating accelerations. Calculating accelerations video Tuesday lesson notes Friday lesson notes Practice acceleration questions Answer sheet PPT | For homework this week make sure you have all your notes in your notebook, and you understand them. In next week's lessons we may have time to go through any problems you have or topics you do not understand - so bring questions to the lesson! | |
| 46 | Study for the test | Lesson notes - Friday | Study for the test. Make sure you have ALL the notes. Try to understand all that we have covered in class. | |
| 47 | Test | |||
| 48 | Energy | Calculating work, energy and power. Tuesday lesson notes Friday lesson notes Dead lift record 501kg (2.06m tall athlete) Conservation of energy video Physics of rollercoaster - the maths is a bit advanced but this covers many aspects of the physics involved. This has no maths but its explanation of mass and velocity is a bit weird in this video on rollercoasters | ||
| 49 | Self driving cars | Arctic test video (Sensible4) Google selfdriving car project 2016 How a car is driven at -71'C | ||
| 50 | Video from the Tuesday lesson - Amazing Physics stuff Jim Al-Khalili | |||
