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SPEED AND VELOCITY #5 Set all problems up below. 1. What is the velocity of a car that travels 300km in 2.5h? A. 120m/s B. 1750km/h C. 750mi/h D. 120km/h 2. .5hours is equal to ___min A. .25min B. 30min C. 45min D. 18 1/2 min 3. Suppose a rocket has a velocity of 750km/h. How far can the rocket travel in 30min? A. 375km B. .75km/h C. 25km/h D. 25km/min 4. It is 358miles from Myrtle Beach to Atlanta. Joe is going to drive from Myrtle Beach to Atlanta in 6h. What must his average speed be? A. 55km/h B. 55mi/h C. 55mi D. 60mi/h 5. Alex is driving 80km/h. How long will it take Alex to drive from Myrtle Beach to Charleston, a distance of 160km? A. 3h B. 2h C. 2km D. 3km/h 6. Speed is defined mathematically as distance divided by time. What is the speed represented by the graph below? A. 40km/h B. .033km/h C. 50mi/h D. 16.2km/h Distance ( km) Distance vs. Time 180 160 140 120 100 80 60 40 20 0 0 1 2 3 4 5 Time ( h) 7. How far can the object graphed above travel in 4.5h? A. 60km B. 180km C. 60km/h D. 60km 8. The motion of the object graphed in the diagram above can best be described as: A. constant C. slowing down D. stationary ( not moving) 9. How long would it take the object graphed above to travel 400km? A. 10h B. 23h C. 40h B. speeding up D. 1.0h 10. Joe walked 1200m East and then turned and walked 600m West. Which statement is true about Joe’s walk? A. The distance he traveled was greater than his displacement. B. His speed was 2.0km/h C. Joe’s velocity is greater than his speed. D. Joe’s distance was less than his displacement. 11. Which of the following measurements best exemplifies a speed or velocity? A. 12.37km/h D. 44.2kgm/s B. 12.9h C. 300m/h/s 12. An airplane traveling at 300mi/h turns from East to West. Which statement is true concerning the speed and velocity of the airplane? A. In a turn the airplanes speed is always greater than its velocity. B. The airplane may have a constant speed and a changing velocity in the turn. C. The airplanes speed and velocity must be equal at all times. D. Though the velocity is constant, the speed may vary during the turn. 13. What is the average speed of a car that travels 200km in 4.0h? A. 40m/s B. 40mi/h C. 40 D. 50.0km/h 14. If a rocket travels at a speed of 500km/h, how far can it travel in 2.0 h? A. 1000km B. 250km/h 1000km/h 15. If a rocket travels at a speed of 500km/h, how long will it take the rocket to fly 800km? over an hour. C. Just over 1½ hours. D. Just under 2h20min. C. 250km/h D. A. Less than half an hour B. Just 16. Dick rides his bike from his house to Jane’s house, a distance of 5.0km. It takes him 1.5h to make the trip. What is Dick’s average speed? A. 7.5km/h B. 7.5m/s C. 7.5mi/h D. 3.3km/h 17. Refer back to question 18. What was Dick’s total displacement when he returned home? A. 0m B. 1.5km C. 3.300km 5.0km 18. Sound can travel at 340m/s. How far can sound travel in 4.0s? A. 1360m B. 85m C. 1360km D. 1360mi 19. Thunder is a sound produced when lightning heats the air causing a rapid expansion of the air. If you see lightning flash and then hear the thunder 4.0s later, how far was the lightning? A. 2km away B. Just under 1½ km. C. Just over 3.5km D. 1.5miles 20. A Greyhound ( The dog, not the bus.) can run 45mi/h. How long would it take a Greyhound to catch a wabbit .25mi away? A .1h B. .006h C. 1.0h D. ¼ mile 21. If Spot runs directly South 2.0km in 1.0h. What is his average velocity? A. 1km/h South B. 2.0km/h South C. 2.0km/h D. 1km/h West 22. If Bill can walk at average velocity of 2.0m/s, how long will it take Bill to walk to home from Dian’s house, a distance of 3.0km? (CAUTION! First change km to meters!) A. 2.0h B. 1500s C. 1200min D. 1.5m/s 23. What is the speed of a car that travels 300km in 6.0hours? _______________________ 24. A car can travel at an average speed of 80km/h. How far will the car travel in3.5hours?_______________________ 25. If a rocket travels 300m/s, how long would it take the rocket to travel 8000m?____________________ SPEED AND VELOCITY ANSWERS NAME_____________________________ BLOCK________________ Place the letter of the correct answer in the space provided. Questions 22-25 require you to record the actual answer. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25.