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Hot Wheels Speed LabNAME_________________________________________Date___________________________Purpose: To calculate the speed of different hot-wheels cars.1. Set up: Place 5 textbooks on the lab table and use an object (your choice) to make a ramp.2. Tape 1 set of track to the ramp (if not already done).3. Measure the length of the track in meters and record in table 1.4. Get the one of the Hot Wheels cars. Eventually, you will need to trade that car as many times as the number of people in the group. Example: If you have four people in your group you will need to trade it three different times5. Race one car at a time.6. Time how long it takes for car 1 to get to the bottom of the track (record in Trial 1).7. Repeat #6-- 3 more times for car 1, recording the time in the table.8. Repeat steps 6 & 7 for the remaining cars.9. Calculate the average time for each car.10. Calculate the speed for each car.11. Write a description of the car with the greatest average speed. We will then collaborate with the rest of the groups to see if their data shows the same result.Data TableCarDistance(cm)Trial #1(sec)Trial #2(sec)Trial #3(sec)Trial #4(sec)Average Time (sec)Average SpeedConclusion questions:1. When calculating speed, are you calculating the fastest speed, average speed, or slowest speed?2. List at least 2 factors that affected the speed of your car? (at least 2)3. What could you do to your car and/or the ramp to make the car go faster?4. What force is responsible for moving your car?5. Why is it important to do more than 1 trial when finding the speed of your car?6. Add a small hill in your track. Complete this lab again using the same cars as before. Data TableCarDistance(cm)Trial #1(sec)Trial #2(sec)Trial #3(sec)Trial #4(sec)Average Time (sec)Average SpeedCompletion QuestionsIs the speed of the car constant or does it changes as it goes down the track? Explain how you know.Are the velocity and the speed of the car the same in this experiment? Explain your answer in a completesentence.What force is causing the car to accelerate down the track in Challenge 2?List 3 things you could have used as a reference point (frame of reference) for this lab?In the 1996 Olympics, gold medal winner Michael Johnson had a __________________ average speed in his 200-meter (10.35 m/s and a time of 19 sec) race compared to his 100-meter race (10.01 m/s and 10 sec). Show your WORK!On the back of this paper, please write a one paragraph conclusion for both of these labs. Total you should have at least two paragraphs. ................
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