4.1.1

Mass & Inertia

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Mass

The mass of an object is a measure of the amount of matter it contains. The mass of an object is constant. It is the same on Earth, on the Moon and in space.

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Amount of matter

  • An object's mass is a measure of the amount of matter that it contains.
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Inertia

  • An object's mass is also a measure of how difficult it is to change the object's motion.
  • This is called inertia.
  • An object with a high mass has more inertia than an object with a lower mass.
  • It is difficult to move an object with a high mass (and high inertia), and once it is moving, the object’s motion is hard to stop.

Jump to other topics

1Physical Quantities & Units

2Measurement Techniques

3Kinematics

4Dynamics

5Gravitational Fields

6Deformation of Solids

7Thermal Physics

8Oscillations

9Communication

10Electric Fields

11Current Electricity

12Magnetic Fields

13Modern Physics

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