C02 Dynamics

对应大纲的内容

P3.4

Newton’s laws:

Know and understand Newton’s first law as: ‘a body will remain at rest or in a state of uniform motion in a straight line unless acted on by a resultant external force’.
Understand mass as a property that resists change in motion (inertia).
Know and understand Newton’s second law as: $\mathrm{force = mass \times acceleration}$
Know and understand Newton’s third law as: ‘if body A exerts a force on body B then body B exerts an equal and opposite force of the same type on body A’.

P3.5

Mass and weight:

Know and understand the difference between mass and weight.
Know and be able to apply gravitational field strength, $\mathrm{g}$, approximated as $10 \mathrm{N\,kg^{-1}}$ on Earth.
Know and be able to apply the relationship between mass and weight: $\mathrm{w = mg}$
Understand free‑fall acceleration.
Know the factors affecting air resistance.

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ESAT物理互动教材（线上）