World History: Pearl Harbor and the Manhattan Project
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Questions and Answers

What event prompted the United States to enter World War II?

  • Germany's invasion of Poland
  • The sinking of the Lusitania
  • Japan's invasion of Pearl Harbor (correct)
  • The attack on Fort Sumter
  • What secret project was initiated to develop an atomic bomb during World War II?

  • The Roswell Initiative
  • Operation Overlord
  • The Apollo Program
  • The Manhattan Project (correct)
  • Why did Harry Truman choose to drop the atomic bomb on Japan?

  • To demonstrate power to Britain
  • To act on behalf of the United Nations
  • To avoid the need for a costly invasion (correct)
  • To test its effectiveness against Germany
  • What was the immediate death toll as a result of the atomic bombs dropped on Hiroshima and Nagasaki?

    <p>120,000</p> Signup and view all the answers

    What long-term health risks did survivors of the atomic bomb face?

    <p>Increased risk of cancer</p> Signup and view all the answers

    Study Notes

    Pearl Harbor and American Entry into WWII

    • On December 7, 1941, Japan launched a surprise attack on Pearl Harbor, prompting the United States to enter World War II.
    • Prior to the attack, the U.S. had initiated the Manhattan Project, a secret program aimed at developing an atomic bomb.

    The Manhattan Project

    • The project commenced after scientists uncovered Nazi Germany's research on uranium atom splitting.
    • The Atomic Bomb was first successfully tested in 1945, amid Germany's surrender to the Allies in Europe.

    Decision to Use Atomic Bombs

    • Japan's Emperor refused to surrender despite international pressure.
    • Harry Truman faced the potential loss of one million American lives in a planned invasion of Japan.
    • The Potsdam Declaration, aimed at persuading Japan to surrender, was ignored.

    Atomic Bombings of Hiroshima and Nagasaki

    • On August 6, 1945, the U.S. dropped an atomic bomb on Hiroshima, followed by another on Nagasaki three days later.
    • The bombings resulted in immediate deaths of approximately 120,000 people, with additional tens of thousands dying later from ensuing radiation-related illnesses.

    Aftermath and VJ Day

    • The bombings led to Japan's surrender, officially declared as Victory over Japan (VJ) Day.
    • Citizens of Hiroshima and Nagasaki faced long-term health risks, including a heightened chance of cancer due to radiation exposure.
    • Ongoing debates question the ethical implications of the atomic bombings and their necessity in hastening the end of the war.

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    Description

    This quiz covers key events surrounding the invasion of Pearl Harbor on December 7, 1941, and the initiation of the Manhattan Project. Explore the implications of these events on American entry into World War II and the development of the atomic bomb. Test your knowledge of this pivotal moment in history.

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