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  1. a. Calculate the speed the Earth travels at in miles per day. b. Calculate the speed of the Earth in miles per hour. 19. Neil travelled 36 km at a speed of 8 km/h. Grant travelled 48km at a speed of 10 km/h a. Determine whose journey took the shortest time. b. Determine the time difference in minutes 20.

  2. (a) Calculate the total distance that Sally drives. (b) Calculate the time that Sally takes for the journey. (c) Calculate her average speed for the whole journey.

  3. When making measurements. physicists use different instruments, such as rules to measure lengths, measuring cylinders to measure volume and clocks to measure time.

  4. Kristina’s journey is shown on the distance-time graph below. (a) Work out Kristina’s average speed, in kilometres per hour. (b) Use the information to plot Lucas’s journey on the same distance-time graph.

  5. Microsoft Word - 614 - 94 - WS-Basic Wave Speed-answers.doc. Problems for you to try: Complete the following practice problems. You MUST show ALL the work outlined in the steps in the example problems. A wave with a frequency of 14 Hz has a wavelength of 3 meters.

  6. Skill and Practice Worksheets Physics A First Course Unit 1: 1.1 Scientific Processes 1.2 Dimensional Analysis 1.2 International System of Measurements 1.2 Making Line Graphs 1.3 Speed Problems 1.3 Problem Solving Boxes (template for solving problems) 1.3 Working with Quantities and Rates 1.3 Problem Solving with Rates 2.1 Mass vs Weight

  7. its distance–time graph. These graphs always have time on the X-axis. We can think of them as telling a story: what happened first, second, etc. This graph tells us that in 5 seconds an object travelled 40 metres. Because speed = distance ÷ time, we can use values from the graph to calculate the speed: 40 ÷ 5 = 8 Speed = 8m/s

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