A. 2. If Shara finished a 200-meter race in 20 seconds, what was her speed? A. 0.01 mps B. 10 mps C. 400 mps D. 4000 mps 3. Which unit is preferably used to measure the distance between two cities? A centimeters B. kilometers C. meters D. mile 4. Which does not demonstrate motion? A. ball rolling on the floor C. mother walking on the street B. ballerina dancing on the stage D. pencil on the table 5. Why do we need to use the metric system of measurement? A. because it is used by many scientist B. because it is important to describe motion C. because it is necessary to describe movement D. because it is easier to understand each other's data. 6. Which of the following is the standard unit of measurement used for distance or length? A foot B. meter C. minute D. second 7. A car travelled 20 kilometers for 5 hours, what is its speed of the car? A. 4 kph B. 8 kph C. 10 kph D. 2 kph 8. A jeepney travels 120 kilometers in 3 hours. What is its average speed? A. 40 km/h B. 43 km/h C. 60 km/p D. 120 kh/h 9. How can biker travel a great distance in a specified time? A. pedal slowly to decrease the speed of the bike B. pedal faster to increase the speed of the bike C. increase the distance it will cover in the same time allotment D. pedal faster to increase the time it will take to cover a distance 10. What does a traffic sign of 60 km/h on a road mean? A. A car may travel more than 60 km/h. C. A car is not allowed to have a speed of 60 km/h. B. The minimum speed a car may travel is 60 km/h. D. The maximum speed a car may travel is 60 km/h.​