A unit of speed is always distance for a specific period of time.

Speed is measured by dividing the time required to travel a distance by the measure of that distance. How can you measure the speed of an object?

One of the pulley configurations makes the car go faster and the other reduces the speed of the car.ĥ. What did you notice about the configuration of the pulley and its effect of the car’s speed over the distance? The bigger the size of the wheel is, the faster the car will travel the distance, if all the other parameters are kept constant.Ĥ. What can you infer about the relationship between wheel size and the time it takes the car to move a distance? However, by the end of the lesson, students should be able to provide an accurate answer to the question.ģ. This means that at the beginning of the lesson, students’ answers can be incorrect. This answer should provide prior knowledge regarding comprehension of the content. What elements can influence the time required for a car to travel a certain distance as fast as possible? The color of the car, brand, or driver experience should not be considered as potential elements for study.Ģ. Size of the wheels, motor power, gears, aerodynamics, and weight would be the most common ones. There are many factors that can influence the speed of a car. What are some ways that cars have been improved to become faster?.

Wedo motor