Year 8 · Autumn First Half
Physics
6 lessons from 2 units.
Unit P5 · lessons 1 to 4 of 4
The same force can leave a dent or leave nothing at all, and what decides it is the area it had to work through. Follow that one idea into a tank, under a hull and up a mountain.
Unit P1 · lessons 1 to 2 of 8
Energy is a number you can work out for a situation, and the discovery is that the number never changes. Everything else in this unit follows from that.
- 01Pressure = force ÷ areaQuantitativeA drawing pin is pressed into wood with a thumb. One end goes into the wood and the other does not go into the thumb. Why?Open this lesson
- 02Pressure in liquidsModelPunch three holes down the side of a full can — near the top, halfway, near the bottom. The bottom jet comes out hardest and fastest, every single time.Open this lesson
- 03Upthrust, floating and sinkingModelDrop a steel bolt in a bucket and it goes straight to the bottom. A steel ship the length of a street floats. Same steel.Open this lesson
- 04Atmospheric pressureSystemA little water is boiled in an empty can, which is then sealed and cooled. The can is crushed flat. What crushes it?Open this lesson
- 01Energy storesClassifyA moving ball, a stretched catapult, a battery in a drawer: all of them hold energy. Where can energy be, and how does it move from one place to another?Open this lesson
- 02Energy transfers: before and afterModelA phone battery holds about 40,000 joules. Run it flat and the phone weighs exactly the same as it did when full. So what actually left it?Open this lesson
Back to all three sciences this half term The whole KS3 Physics course