Classical Relativity: Distance and Time Relation to the Observer


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question 1 of 3

Consider a car traveling west at 60 MPH. The passenger throws a ball in the same direction the car is traveling. If the passenger clocks the speed of the ball at 40 MPH, what is the speed of the ball relative to the road?

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1. Consider a plane flying due West at 200 MPH. The co-pilot is firing a gun in the opposite direction the plane is flying - due East. If the co-pilot clocks the bullets at 500 MPH, how fast would the bullets be clocked from the ground?

2. Consider driving in a car at 65 MPH while drinking a cup of coffee. Which of the following would be traveling at the greatest speed?

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About This Quiz & Worksheet

This quiz and worksheet combo will help you quickly assess your knowledge of speed and motion. You will be quizzed on motion principles and how motion is relative.

Quiz & Worksheet Goals

In these assessments you'll be tested over your ability to:

  • Recall the definition of classical relativity
  • Answer questions regarding speed
  • Determine why an object moving is relative to something else
  • Describe relative velocities

Skills Practiced

  • Reading comprehension - ensure that you draw the most important information from the related speed and motion lesson
  • Information recall - access the knowledge you've gained regarding classical relativity
  • Problem solving - use acquired knowledge to solve motion practice problems

Additional Learning

To learn more about motion, review the accompanying lesson on Classical Relativity: Distance and Time Relation to the Observer. The lesson covers the following objectives:

  • Understand how distance is relative to perception
  • Define classical relativity
  • Understand velocity principles
  • Determine the exceptions to classical relativity