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Necessity and Possibility

This quiz covers the concepts of necessity and possibility in philosophy, logic, and related fields.

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following statements is necessarily true?

  1. The sun is a star.
  2. The sky is blue.
  3. I am thinking.
  4. Paris is the capital of France.
Question 2 Multiple Choice (Single Answer)

Which of the following statements is possibly false?

  1. 2 + 2 = 4.
  2. The Earth is round.
  3. All bachelors are unmarried.
  4. There is no such thing as a talking cat.
Question 3 Multiple Choice (Single Answer)

Which of the following is a necessary condition for something to be possible?

  1. It is not self-contradictory.
  2. It is logically consistent.
  3. It is physically possible.
  4. It is morally permissible.
Question 4 Multiple Choice (Single Answer)

Which of the following is a sufficient condition for something to be necessary?

  1. It is logically true.
  2. It is metaphysically necessary.
  3. It is morally necessary.
  4. It is epistemically necessary.
Question 5 Multiple Choice (Single Answer)

Which of the following is an example of a metaphysical necessity?

  1. The law of non-contradiction.
  2. The existence of God.
  3. The fact that 2 + 2 = 4.
  4. The fact that I am thinking.
Question 6 Multiple Choice (Single Answer)

Which of the following is an example of an epistemic necessity?

  1. I know that I exist.
  2. I know that the sky is blue.
  3. I know that 2 + 2 = 4.
  4. I know that Paris is the capital of France.
Question 7 Multiple Choice (Single Answer)

Which of the following is an example of a moral necessity?

  1. I ought to keep my promises.
  2. I ought to help those in need.
  3. I ought to be honest.
  4. I ought to be kind.
Question 8 Multiple Choice (Single Answer)

Which of the following is an example of a contingent truth?

  1. The sun is a star.
  2. The sky is blue.
  3. I am thinking.
  4. 2 + 2 = 4.
Question 9 Multiple Choice (Single Answer)

Which of the following is an example of a necessary truth?

  1. The sun is a star.
  2. The sky is blue.
  3. I am thinking.
  4. 2 + 2 = 4.
Question 10 Multiple Choice (Single Answer)

Which of the following is an example of a possible world?

  1. A world where the sky is green.
  2. A world where unicorns exist.
  3. A world where I am the president of the United States.
  4. A world where the laws of physics are different.
Question 11 Multiple Choice (Single Answer)

Which of the following is an example of a necessary world?

  1. A world where the sky is green.
  2. A world where unicorns exist.
  3. A world where I am the president of the United States.
  4. A world where the laws of physics are different.
Question 12 Multiple Choice (Single Answer)

Which of the following is an example of a contingent world?

  1. A world where the sky is green.
  2. A world where unicorns exist.
  3. A world where I am the president of the United States.
  4. A world where the laws of physics are different.
Question 13 Multiple Choice (Single Answer)

Which of the following is an example of a metaphysical possibility?

  1. The existence of God.
  2. The existence of unicorns.
  3. The existence of a talking cat.
  4. The existence of a round square.
Question 14 Multiple Choice (Single Answer)

Which of the following is an example of a physical possibility?

  1. The existence of God.
  2. The existence of unicorns.
  3. The existence of a talking cat.
  4. The existence of a round square.
Question 15 Multiple Choice (Single Answer)

Which of the following is an example of a logical possibility?

  1. The existence of God.
  2. The existence of unicorns.
  3. The existence of a talking cat.
  4. The existence of a round square.
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