Force and Friction

Science subject : Force and Friction

The Moles class has been testing five different wooden planks, four of them are covered with, wool, sandpaper, plastic, paper and bare wood. They tested by putting every plank on the top of a slide, and tested them by timing using the stopwatch, see how fast / slow they go down the slide. The bare wood plank was the fastest and the slowest was sandpaper.