This week in physics we started to study kinematics. Kinematics is the study of motion. An example of this type of physics is a speedometer. A speedometer shows the speed of a vehicle. By definition, speed is the distance traveled per unit of time or how fast something goes. In most cars the speedometer shows the speed in miles per hour and also in kilometers per hour. The speedometer can also show instantaneous speed because it can give the speed of the car at any given time. The speedometer cannot show velocity or average speed. The velocity of the car is not shown by it because it doesn't show what direction the car is moving in. It doesn't show the average speed of the car on the speedometer but most modern cars have computers that calculate the average speed of a vehicle.
You are very correct in this blog post. Great connections to kinematics.
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