A-Level Physics Edexcel 9PH0

understand how to use the equation impulse $= F∆t=∆p$ (Newton’s second law of motion)

CORE PRACTICAL 9: Investigate the relationship between the force exerted on an object and its change of momentum.

understand how to apply conservation of linear momentum to problems in two dimensions

CORE PRACTICAL 10: Use ICT to analyse collisions between small spheres, e.g. ball bearings on a table top.

understand how to determine whether a collision is elastic or inelastic

be able to derive and use the equation $E_k = \dfrac{p^2}{2m}$ for the kinetic energy of a non-relativistic particle

be able to express angular displacement in radians and in degrees, and convert between these units

understand what is meant by angular velocity and be able to use the equations $r=ωv$ and $T = \dfrac{2π}{ω}$

be able to use vector diagrams to derive the equations for centripetal acceleration $a = \dfrac{v^2}{r} = rω^2$ and understand how to use these equations

understand that a resultant force (centripetal force) is required to produce and maintain circular motion

be able to use the equations for centripetal force $F = ma = \dfrac{mv^2}{r} = mrω^2$