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| Types of Motion |
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| There are three types of motion: |
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 Translatory motion |
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 Rotatory motion and |
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 Vibratory motion. |
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| In translatory motion the particle moves from one point in space to another. This motion may be along a straight line or along a curved path. The motion along a straight line is called rectilinear motion. |
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| Example: A car moving on a straight road |
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| Motion along a curved path is called curvilinear motion. |
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| Example: A car negotiating a curve |
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| In rotatory motion, the particles of the body describe concentric circles about the axis of motion. |
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| Rotatory motion |
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| In vibratory motion the particles move to and fro about a fixed point. |
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| Simple pendulum |
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