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Forces, Density and Pressure

Cambridge AS Level Physics (9702) · 4 topics

Turning effects of forces

Moments and Turning Effects You saw in Chapter 3 that a force can cause a body to accelerate. Sometimes, however, a force is applied in a way that will make a…
Equilibrium of forces

The Principle of Moments The principle of moments states that if there is no resultant torque on a body, then it is in rotational equilibrium . Sum of Clockwise…
Equilibrium in two dimensions

Solving 2D Equilibrium Problems When objects are suspended by ropes, cables, or hinges in two dimensions, we must ensure equilibrium in both horizontal (x) and…
Density and pressure

Pressure In everyday life, 'force' and 'pressure' are often used interchangeably, but in physics they are distinct. Pressure is a measure of how concentrated a…