Grade 8 Physics Lessons for Spring 2025
Assessments: to be arranged Test date: to be arranged
| Week number | Starting date | Lesson content | Lesson resources and links | Homework |
| 2 | 7.1 | 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 correctlyWhat are forces - discussion. Examples of forces -eg gravity, friction, air resistance How big is a newton?
| Sheet: Terms and conditions Video seen in lesson on scales of 10 8.1 ppt | Read the sheet from the lesson and complete this form |
| 3 | 13.1 | Can a rubber band be useful to measure forces? Scales and measurements discussion 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 The surprising loss of mass of the kilogram Background info videos - friction friend or foe Lego experiment results' table spreadsheet Lesson notes | 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? |
| 4 | 20.1 | 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 Forces on a falling parachutist video | Watch this video as preparation for next lesson. There is no written task with this homework. |
| 5 | 27.1 | 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. Lesson notes Also, this video on changing units might help you | Complete this sheet. Beware the mathematical trickery! Homework solution sheet |
| 6 | 3.2 | No lesson - TET | ||
| 7 | 9.2 | Do tall people jump further? | Spreadsheet link for data processing 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 |
| 8 | 17.2 | Falling and terminal velocity | PPT I was absent for this lesson and you worked from books, but these videos might be useful to you when studying 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 | |
| 9 | 24.2 | Processing data. Reviewing last week's work. Starting the 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. Diagram you can use for the report Googlesheet you can use for your results and graph - important - use ONE sheet from this. Ask if unsure. | Complete the first two pages of the writing frame - up to and including safety |
| 11 | 10.3 | Completing the experimental part of the investigation | Lesson notes | Complete the first two pages of the report - up to the results. We will complete the conclusion and evaluation next lesson |
| 12 | 17.3 | Investigation | ||
| 13 | 24.3 | Investigation | If you have finished the investigation then do this task: this task on wing shape and flying | |
| 14 | 31.3 | 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 PPT | Study for the test in week 16 - open notebook so make sure you have all the notes. |
| 15 | 7.4 | 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 Lesson notes | Study for the test in week 16 - open notebook so make sure you have all the notes. |
| 16 | 14.4 | TEST | ||
| 17 | 21.4 | Conservation of energy | Energy in physics - lesson taken by a substitute Videos which were shown in the lesson: https://www.youtube.com/watch?v=BcZfRSlaw7s (first 9 minutes before the maths gets too hard!) https://www.youtube.com/watch?v=yUpiV2I_IRI on physics and car crashes. | No homework |
| 18 | 28.4 | Centre of gravity | Conservation of energy video - the wrecking ball Fosbury flop Lesson notes | |
| 19 | 5.5 | |||
| 20 | 12.5 | |||
| 21 22 | 19.5 26.5 |
