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Classical Principle of Relativity Practice Questions

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The following physics revision questions are provided in support of the physics tutorial on Classical Principle of Relativity. In addition to this tutorial, we also provide revision notes, a video tutorial, revision questions on this page (which allow you to check your understanding of the topic) and calculators which provide full, step by step calculations for each of the formula in the Classical Principle of Relativity tutorials. The Classical Principle of Relativity calculators are particularly useful for ensuring your step-by-step calculations are correct as well as ensuring your final result is accurate.

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18.2Classical Principle of Relativity

Physics Revision Questions for Classical Principle of Relativity

1. A person releases a ball from the window of a car moving at 20 m/s. the height of release is 1 m above the ground. How far from the car does the ball touch the ground?

  1. 1 m
  2. 2 m
  3. 8.9 m
  4. 20 m

Correct Answer: C

2. The car A is moving at 40 m/s in a highway. Two other cars B and C are moving in the same highway: the car B at 30 m/s in the same direction to A and the car C at 20 m/s in the opposite direction to A. Which is true for the velocities of cars B and C relative to an inertial system connected to the car A?

  1. vB = 30 m/s; vC = 20 m/s
  2. vB = 30 m/s; vC = -20 m/s
  3. vB = -10 m/s; vC = -20 m/s
  4. vB = -10 m/s; vC = -60 m/s

Correct Answer: D

3. A fast meteorite is moving at 50 000 km/s. What is the speed of light the flame of meteorite emits when viewed by the two observers 1 and 2 if both observers are at rest? Take the speed of light in vacuum as 300 000 km/s.

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  1. c1 = 350 000 km/s; c2 = 250 000 km/s
  2. c1 = 300 000 km/s; c2 = 250 000 km/s
  3. c1 = 300 000 km/s; c2 = 300 000 km/s
  4. c1 = 0 km/s; c2 = 250 000 km/s

Correct Answer: C

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  2. Relativity Physics tutorial: Classical Principle of Relativity. Read the Classical Principle of Relativity physics tutorial and build your physics knowledge of Relativity
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  4. Check your calculations for Relativity questions with our excellent Relativity calculators which contain full equations and calculations clearly displayed line by line. See the Relativity Calculators by iCalculator™ below.
  5. Continuing learning relativity - read our next physics tutorial: Space and Time in Einstein Theory of Relativity

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