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A-Level H2 物理筆記
Chapter 4: Dynamics II: Forces
章节主题:
Mass and weight
Gravitational field and field strength
Density
学习目标:
(a) State that mass is a measure of the amount of substance in a body.
(b) State that mass of a body resists a change in the state of rest or motion of the body (inertia).
(c) State that a gravitational field is a region in which a mass experiences a force due to gravitational attraction.
(d) Define gravitational field strength (g) as gravitational force per unit mass.
(e) Recall and apply the relationship weight = mass × gravitational field strength to new situations or to solve related problems.
(f) Distinguish between mass and weight.
(g) Recall and apply the relationship density = mass / volume to new situations or to solve related problems.
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