Nokea
How did Hedy Lamarr contribute significantly to the advancement of technology?
- A. The technology of the era wasn't advanced enough to easily implement Lamarr's system
- B. She collaborated with the science engineering team employed by Howard Hughes, the aviation tycoon
- C. She had several failed inventions, such as an improved traffic light and a carbonated drink
- D. Her work led to the future development of cellular phones, Bluetooth, and Wi-Fi.
Correct Answer: D
Rationale: The correct answer is D because Hedy Lamarr's invention of a frequency-hopping system, along with George Antheil, laid the foundation for technologies like cellular phones, Bluetooth, and Wi-Fi. This significant contribution revolutionized communication technology. Choice A is incorrect because it focuses on the limitations of the era's technology rather than Lamarr's contributions. Choice B is incorrect as it briefly mentions her collaboration but does not directly relate it to technological advancements. Choice C is incorrect as it highlights her failed inventions, which are not indicative of her significant contributions to technology.
You may also like to solve these questions
Which of the following could accurately subtitle this passage?
- A. The start of the revolution
- B. American march from the sea
- C. The full armies face off
- D. In the state of Massachusetts
Correct Answer: A
Rationale: The passage outlines significant events in Clara Barton's life, starting from her birth in Massachusetts, moving to Washington D.C., her humanitarian work during the Civil War, and her later efforts in Europe and with the Red Cross. The most accurate subtitle for this passage would be 'The start of the revolution,' as it refers to the beginning and progression of Barton's revolutionary work in humanitarian aid and establishing the American branch of the International Red Cross Organization. The other choices are not suitable subtitles as they do not encompass the breadth of Barton's impactful life events described in the passage.
Which of the following conclusions can be drawn from the passage?
- A. Plastic pollution poses a significant environmental threat due to its lasting nature and difficulty in recycling.
- B. Plastic is an outdated material with no advantages.
- C. Recycling plastic significantly reduces environmental pollution.
- D. Plastic pollution has no impact on marine life.
Correct Answer: A
Rationale: The correct conclusion that can be drawn from the passage is that plastic pollution poses a significant environmental threat due to its lasting nature and difficulty in recycling. The passage highlights the challenges of recycling plastic due to its low quality when recycled, leading to pollution and environmental hazards. It mentions the presence of a large island of plastic in the Pacific Ocean, showing the severe impact of plastic pollution on the environment. Therefore, choice A is the most accurate conclusion. Choice B is incorrect as the passage mentions that plastic has many advantages despite its recycling challenges. Choice C is incorrect as the passage indicates that recycling plastic is difficult due to its low quality when recycled. Choice D is incorrect as the passage clearly states that plastic consumption by marine life like fish and birds is a reality, showing the impact of plastic pollution on marine ecosystems.
During the Great Emu War, which of the following events happened immediately after the conflict resumed in mid-November?
- A. Military efforts became ineffective
- B. The Australian government launched the initial assault
- C. The military withdrew
- D. Emus resorted to guerrilla tactics
Correct Answer: D
Rationale: The correct answer is D. According to the extract, emus resorted to guerrilla tactics during the Great Emu War. This choice aligns with the information provided, indicating that the emus changed their tactics in response to the conflict. Choices A, B, and C are incorrect as there is no mention in the extract or historical context of military efforts becoming ineffective, the Australian government launching an initial assault, or the military withdrawing immediately after the conflict resumed in mid-November.
Which of the following words from the sentence above has a negative connotation?
- A. Contained
- B. Shocked
- C. Complimentary
- D. Reportedly
Correct Answer: B
Rationale: The word 'shocked' has a negative connotation as it implies a strong feeling of surprise or dismay. In the context of the provided extract, the word 'shocked' would be fitting to describe the reaction of individuals witnessing the sudden outbreak of violence during the skirmish at Lexington and Concord. The other choices do not carry a negative connotation in this context: 'Contained' is neutral, 'Complimentary' is positive, and 'Reportedly' is neutral.
Which of the following lines from the passage supports the inference that Hedy Lamarr worked earnestly to achieve her goals?
- A. She began starring in American films with MGM studios in the late 1930s and early 1940s
- B. She even spent time working with the science engineering team employed by Howard Hughes, the aviation tycoon
- C. Her roles generally did not include very many spoken lines and she became bored
- D. ... but she did not allow that to stop her from teaching herself in her spare time.
Correct Answer: D
Rationale: The correct answer is D, as it showcases Hedy Lamarr's determination and hard work towards achieving her goals. Despite facing challenges, such as not having many spoken lines in her roles, she persevered by teaching herself in her spare time. Choice A talks about her success in starring in American films but does not directly relate to her working earnestly. Choice B mentions her collaboration with Howard Hughes' science engineering team, which indicates involvement but not necessarily hard work towards personal goals. Choice C describes her becoming bored due to the lack of spoken lines in her roles and does not highlight her dedication and effort to achieve her aspirations.