Year 10 Forces - Triple Term 4 - Coggle Diagram
Forces - Triple
Describe the moments at work on an object in equilibrium
Explain where distance is measured from
USE & RECALL - M = F x d
Describe a fluid as either a liquid or a gas
Explain that the pressure in a fluid causes a force to act at right angles (normal) to the surface of its container (use a diagram)
Calculate the pressure of a gas
USE & RECALL - P = F / A
HT: Explain why the pressure in a fluid varies with depth and density.
Calculate the pressure in a column of liquid
USE ONLY - P = h x ρ x g
HT: Explain the idea of up thrust in terms of the pressure on the bottom and top of an object.
HT: Explain the effect of different densities of an object on up thrust
HT: Explain why an object floats or sinks, with reference to its weight, volume and the up thrust it experiences"
Describe a simple model of the Earth's atmosphere and of atmospheric pressure
Explain why atmospheric pressure varies with height above a surface
Explain what happens to momentum when a force acts on an object
Calculate momentum involving two objects
USE ONLY - F = mΔv/Δt
Explain that an increased force delivers an increased rate of change of momentum
Explain safety features such as air bags, seat belts, helmets and cushioned surfaces using the rate of change of momentum