Speed Speed describes how fast an object is moving Speed describes how fast an object is moving If an object is not moving it has no speed If an object.

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Presentation transcript:

Speed Speed describes how fast an object is moving Speed describes how fast an object is moving If an object is not moving it has no speed If an object is not moving it has no speed

Instantaneous speed A speedometer shows a car’s instantaneous speed. The instantaneous speed is the actual speed an object has at any moment.

When an object is covering an equal distance in an equal amount of time, it is moving at a constant speed Most objects do not travel at constant speed

When you divide the total distance of a trip by the time taken you get the average speed. On this driving trip around Chicago, the car traveled and average of 100 km/h.

Speed The speed of a moving object is usually different at any given moment, so we must calculate the average speed The speed of a moving object is usually different at any given moment, so we must calculate the average speed Average Speed (V) = Distance (D) Average Speed (V) = Distance (D) Time (T) Time (T) Units= m/s D VT

The units for speed are distance units over time units.