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## GCE O-Level Physics Syllabus

## Chapter 4: Dynamics II: Forces

## Chapter Topics:

Mass and weight

Gravitational field and field strength

Density

## Learning Objectives:

(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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