Forces preassire
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10 Terms
Friction
Friction is a force which will slow down a moving object due to two surfaces rubbing on each other.
Drag
When an object is moving through a fluid either liquid or gas, the force what ch slows it down is drag.
Measuring forced
Forces × distance = Nm
Hooks Law
If the double the force on the spring then the extension will also double.
Atmospheric pressure
Atmospheric pressure is the pressure which the air exerts on you all of the time, near the ground there are more particles weighing down your knew so the pressure is greater.
Friction
Both Friction and Drag are contact forces.
Pressure in liquid
Particles in liquids are touching already so there is not space for them to be compressed.
Turning forces
When an object is balanced the clockwise and anticlockwise moment will be equal which is known as equilibrium.
Pressure in solid
When a pressure is exerted on a solid it is known as stress.
Calculate pressure
Pressure = force ÷ area