Introduction to Physics Pretest
Introduction to Physics PretestInstructor: Mr. Schaeffer Read over the questions carefully and answer the questions on this sheet. Show all of your work and record your answers with the units and the correct number of significant figures. Write how many significant figures are in the following and rewrite in scientific notation.0.0000000000561 mSig Fig = ______ Sci Note = __________________9101000 mSig Fig = ______ Sci Note = __________________11 players on the fieldSig Fig = ______ Sci Note = __________________600.910 mSig Fig = ______ Sci Note = __________________90.049 gSig Fig = ______ Sci Note = __________________Multiply or divide as indicated watching significant digits.(6.21 x 1018m)(4.70 x 10-10m) ____________________________________(6.5 x 105 kg) / (3.4 x 103 m3) ____________________________________The radius of Earth is 6.37 x 103 km.Find the speed, in km/h, resulting from the rotation of Earth, of a person standing on the equator. Use the equation v = 2?r/tConvert your answer to m/sWhile traveling along an interstate highway Wong Wai notices mile marker 260 he travels to mile marker 150 and then realizes he missed his exit and he turns around and finds his exit at mile marker 175What is his distance traveled? ___________________________________What is his displacement?___________________________________From the table calculate the average velocity of Ron Faster for each of the events that he competed in.Length of event (m)Time (s)Velocity100.09.86200.019.72400.043.29800.0101.731943100160020 Describe the trip taken by the car. Describe the direction the car is going and the velocity of the car during each of the intervals on the graph.1943100160655Explain the two lines on the graph. What is the difference between the two series on the graph?Plot the following data and answer the questions.TimeVelocity0.00.01.04.02.08.03.012.04.016.05.020.06.020.07.020.08.020.0What is the displacement during the first 4 seconds?What is the displacement during the entire 8 seconds?What is the slope between 0-4 seconds mean and what is its magnitude?Determine the displacement of a plane that is uniformly accelerated from 66m/s to 88m/s in 12 seconds.Ester O. Nott drops a feather from 1.2m above the surface of the moon. If the acceleration due to gravity on the moon is -1.62m/s2 how long does it take for the feather to hit the ground?Ellie Copter, an engineer must design a runway to accommodate planes that need to reach 61m/s in order to take off. If the planes can accelerate at 2.5m/s2 How long does it take for the plane to take off once it starts to accelerate?What is the minimum distance required for the runway?Justin Case is flying a helicopter that is descending at 5.0 m/s. When he is 160 m above the ground he drops a bag out the window.What is the velocity of the bag after 2 seconds?What distance has it traveled in 2 seconds?When will it hit the ground?What will the final velocity be when it hits the ground?13. How many steps are there possible in the scientific method?14. When does the scientific method become a scientific law?A. When it cannot be disprovenB. When it discovers something newC. When it proves your hypothesis correctD. When it continuously supports current beliefs15. Write the steps of the scientific method in order.16. Give two examples of a scalar and two examples of a vector.17-20. Convert the following measurements.17. Sultan Kosen is currently the world’s tallest living man standing at an incredible 251cm. What is his height in feet and inches?18. The most weight ever lost by one person is credited to John Brower Minnoch who lost a staggering 419kg!! What is his weight loss in pounds? There are 453.592 grams in every pound.19. The world’s fastest car has been recorded at a top speed of 341.1 m/s! Holy cow! What is this car’s speed in mi/hr? There are actually 1609.34 meters in a mile!! Wha…!? ................
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