Speeding past the school

 Aim: 

See how many cars are speeding past school

Method:  1-measure distance ... power pole ---> power pole= 50m

               2- Time how long it takes a car to travel this distance.

   -"flag" person indicate when a car passes their pole

   -"Timer" person starts when the flag person raises the flag and stops it when the car passes the pole.

   -" Writer" person writes down the time.

3-collect 10 times

4-calculate speed in m/s and then convert to km/hr

Speed	Car 1	Car 2	Car 3	Car 4	Car 5	Car 6	Car 7	Car 8	Car 9	Car 10	Average
Time (s)	2.55	2.89	2.39	3.12	2.15	2.74	2.85	2.89	3.38	3.39	2.83
m s-1	19.6	17.3	20.9	16	23.3	18.2	17.5	17.3	14.8	14.7	17.7
km hr-1	70.6	62.3	75.2	57.6	83.8	65.5	63	62.2	53.2	52.9	63

5-Are there any speeders?

yes

Conclusion:

In conclusion, the principal's hypothesis was correct(that the cars were going fast and over the speed limit) The Average speed was 63km per hour which the speed limit is 50km. We even noticed a car that was going 83.8km per hour.

6- What was the average speed of the cars you measured?

63km per hour

7- Should the principal be worried about speeding on this road?

yes