Junior high school physics, pressure There is a beaker with a volume of 1000ml and a volume of 200ml. At this time, the pressure and pressure of water on the bottom of the beaker is f, P, and the pressure and pressure of the cup on the table top is f1.p1. When a piece of wood is put in, the pressure and pressure on the bottom of the beaker and the table top are calculated, Thank you, it's better to have a detailed analysis

Junior high school physics, pressure There is a beaker with a volume of 1000ml and a volume of 200ml. At this time, the pressure and pressure of water on the bottom of the beaker is f, P, and the pressure and pressure of the cup on the table top is f1.p1. When a piece of wood is put in, the pressure and pressure on the bottom of the beaker and the table top are calculated, Thank you, it's better to have a detailed analysis

Analysis: assuming that the gravity of the wood block is g, then we first discuss the pressure of the table. The pressure on the table = beaker + water + wood block is definitely increased, and the contact area between the beaker and the table is unchanged, so the pressure = pressure / area is also increased

The formula and deformation of pressure in junior high school physics

4. Definition formula: P = f / S (substance in any state can be applied) liquid pressure: P = ρ GH (H is the depth) pressure: F = PS stress area: S = f / p 5, buoyancy calculation weighing method: F floating = G-F formula method: F floating = g row = ρ row V row g floating method: F floating = g substance (V row < V substance) suspension method: F floating = g substance (V row = V substance)

Junior high school physics all about the formula of force and pressure!

1. Gravity formula g = mg deduces M = g / G 2. Pressure formula solid P = f / s deduces f = PS s = f / P liquid p = ρ GH liquid pressure can only use f = PS 3. Buoyancy Formula 1. Weighing method f floating = G-F '(f' is the indication of spring dynamometer after the object is put into liquid)