1. What is a disadvantage of using wind as a method of generating electricity?
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1 6th Grade Week 18 CCA 15/16 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. What is a disadvantage of using wind as a method of generating electricity? a. It creates air pollution. b. Wind is a nonrenewable resource. c. It produces hazardous waste. d. Wind speed is not constant. 2. Why is the use of geothermal energy limited? a. It only works in areas that have volcanic activity, and these areas are limited. b. It destroys habitats, so it cannot be used in areas where there is a lot of wildlife. c. It pollutes the water, so it cannot be used in areas where people live. d. It only works in areas that have steady winds, and these areas are limited. 3. Jenny s family relies on solar energy to power their house. What feature of Jenny s home is designed to trap solar energy? (Jenny s family wants to conserve energy in their house. Which addition will save money on their electric bill?) a. water generator in the sink c. wind turbines outside b. propane tank d. solar panels 4. Which direction will the box move? a. Up b. Down c. Left d. Right
2 5. Josie jogs every morning before work. One day she stopped to chat with a friend for a few minutes. Realizing that she was now late she ran the rest of the way home. Which graph below shows her motion during her morning jog? a. c. b. d. 6. The graph below shows the speed of a car traveling west over a 12 second period of time on a flat surface. In the last 6 seconds shown on the graph, the car is - a. decreasing speed c. changing direction b. increasing kinetic energy d. increasing speed 7. The graph shows the distance traveled by 4 cars. Which car traveled the slowest?
3 a. Car 3 b. Car 1 c. Car 4 d. Car 2 8. Which of the graphs below shows an object that is traveling a constant speed for 2 sec, stops for 1 sec and then continues at a constant speed? a. c. b. d. 9. Ben ran 420 meters in 70 seconds. What was his average speed? a. 35 meters/second c. 6 meters/second b. 5 meters/second d. 60 meters/second 10. A raccoon scurries away 60 meters in 1/2 of a minute. Which of the following is the average speed of the raccoon?
4 a. 4 meters/hour c. 2 meters/seconds b. 2 meters/minutes d. 30 meters/seconds 11. Juan and Christina are standing still on their roller blades. What happens when Christina pushes Juan from behind. 12. a. He moves forward and she remains where she is at. b. She moves backwards and he moves forward c. they both travel forward d. They move apart at different speeds Which speed verses time graph is from the same horse race? a. c.
5 b. d. 13. What is the average speed of the car shown in the graph? a km/hr b km/hr c. 25 km/hr d. 28 km/hr 14. The graph below shows the distance and time traveled by four cars. Which car traveled the slowest? a. Car 1 b. Car 3 c. Car 4 d. Car Brian Green, Dinosaur hunter, went back in time to hunt a T-Rex. What Happened at Point C?
6 a. Dinosaur reached its furthest position. b. Dinosaur returned to its original position. c. Brian killed the Dinosaur. d. Dinosaur reached slowest speed. 16. Describe the changes in motion that are occurring in this model: a. The elevator started on the 0 floor, went up to the 20th floor, went up to the 30th floor, and then went up to the 50th floor. b. The elevator went up for 20 seconds, did not move for 10 seconds, then went down for 20 seconds. c. The elevator went up for 20 seconds, went sideways for 10 seconds, and then went down for 20 seconds. d. The elevator sped up for 20 seconds, stayed at the same speed for 10 seconds, and then slowed down for 20 seconds. 17. A family has a meeting after reviewing their energy bill to decide how to lower their bill. Which of the following suggestions would help to conserve energy and reduce their energy bill in the future?
7 a. Be sure the computer screen is off or in the sleep mode when not in use. b. Turn off the lights when your are not in a room. c. Don t leave the TV on if it is not being watched. d. All of the above. 18. A school district in a nearby county needed to reduce the district s use of petroleum for transportation by 20% to save money. What is the best way for them to do this? a. Buy an all new fleet of buses. b. Go to a 4 day school week so the buses would not have to run as often. c. Cut the school days by 15 minutes. d. Make the student s parents drive them to school. Numeric Response 19. The track team was involved in a recent meet. Their times in two of the events were recorded in minutes:seconds and were then entered into a spreadsheet. Luke ran faster in the second race than he did in the first. How much faster did Luke run in the second race? Record and bubble in your answer below. 20. How fast does a baseball player have to run to make it from first base to third base in 7 seconds? m/sec
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