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Modelling, units and kinematics in one dimension

Mechanics · Lesson 1 of 6

Lesson 1 of 6

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Lesson 1 of 6 · Mechanics

Modelling, units and kinematics in one dimension

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By the end you’ll be able to

interpret and evaluate simple mechanical models, including assumptions such as treating bodies as particles, strings as light and inextensible, rods as rigid, and surfaces as smooth
use and convert standard units in mechanics, including displacement, velocity, acceleration, mass, force and time, and distinguish scalar from vector quantities where required

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apply the constant-acceleration formulae $v=u+at$, $s=ut+\tfrac12at^2$, $v^2=u^2+2as$ and $s=\tfrac12(u+v)t$ to solve problems involving straight-line motion

interpret and use displacement-time and velocity-time graphs, including gradients and signed areas, to find displacement, velocity and acceleration

calculate total distance travelled as distinct from displacement in one-dimensional kinematics problems

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