- The speed of an object is a measure of how fast it is moving.
Speed (m/s) = Distance travelled (m) divided by Time taken (s)
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- The acceleration of an object is the rate at which its velocity changes. It is a measure of how quickly an object speeds up or slows down.
Acceleration (m/s2) = Change in velocity (m/s) divided by Time taken for change (s)
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- Kinetic energy - energy an object has because of its movement. It depends on the mass and speed of the object.
Kinetic energy (J) = 1/2 x Mass (kg) x Speed (m/s)2
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