A-Level Physics Specification

OCR A H556

Section 3.5.1: Newton’s laws of motion

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#3.5.1a

Newton’s three laws of motion

#3.5.1b

linear momentum; \(p = mv\); vector nature of momentum

#3.5.1c

net force = rate of change of momentum;

\(F = \dfrac{Δp}{Δt}\)

Learners are expected to know that \(F = ma\) is a special case of this equation.

#3.5.1d

impulse of a force; impulse = \(FΔt\)

#3.5.1e

impulse is equal to the area under a force–time graph.

Learners will also be expected to estimate the area under non-linear graphs.