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GCSE Combined Science · key term
A measure of the amount of matter in an object, measured in kilograms (kg).
Used by AQA and Edexcel
Specification 6.3.1.1, 6.5.1.3 · Paper 5, Paper 6
The amount of matter in an object or sample, measured in kilograms, kg.
Revise: Density of MaterialsDensity describes how much mass there is in each unit of volume. Comparing equal volumes makes this clearer: a bag full of metal has much more mass than a similar-sized bag full of feathers.
Paper 5, Paper 6
The amount of matter in an object. Mass is a scalar measured in kilograms (kg).
Revise: Vectors and scalarsA physical quantity is something that can be measured, such as mass, speed or force. Its magnitude means its size. For example, a mass of 5 kg tells us how much matter an object contains.
A measure of the amount of matter in an object, measured in kilograms (kg). Moving the object to a different gravitational field does not change its mass.
The amount of matter in an object, measured in kilograms. It is different from weight, which is a force.
Use mass, not weight, in the density equation. A balance measures mass; weight is a force measured in newtons.
Explain density using particle spacing and mass in a given volume, not just whether the arrangement is regular or random.
For a liquid, subtract the empty container’s mass from the combined mass. Use the measured volume, not the volume you intended to pour.
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