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.
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What prompted Hedy Lamarr to take up inventing?
- A. Boredom from her film roles lacking spoken lines
- B. Formal training in engineering
- C. Her successful inventions like the radio signal technology
- D. Working with Howard Hughes' aviation team
Correct Answer: A
Rationale: Hedy Lamarr took up inventing due to boredom from her film roles lacking spoken lines. The extract mentions that to relieve her boredom, Lamarr turned to inventing after her film roles did not provide much dialogue.
What is the tone of the passage?
- A. Witty
- B. Incredulous
- C. Aggressive
- D. Tense
Correct Answer: A
Rationale: The correct answer is A: 'Witty.' The tone of the passage is light-hearted and humorous, characterized by amusing details like the eccentric birthday party with zebras, monster trucks, and a limited buffet of boiled asparagus and pickled carrots. The mention of Dr. Creekstone planning an even bigger party with more zebras adds to the whimsical and humorous tone. Choices B, C, and D are incorrect as there is no indication of disbelief, hostility, or anxiety in the passage; instead, it conveys a sense of fun and amusement.
What is a typical characteristic of male cicadas?
- A. They have short antennae and wide-set eyes.
- B. They respond with a clicking sound when ready to mate.
- C. They make strident, high buzzing sounds by vibrating two membranes on their abdomen.
- D. They deposit eggs into the bark after mating.
Correct Answer: C
Rationale: Male cicadas are known for making strident, high buzzing sounds by vibrating two membranes on their abdomen, reaching up to 80 to 100 decibels, similar to the roar of a loud engine. This behavior is distinct to male cicadas and serves as a way to attract females for mating. Choice A is incorrect because it describes physical characteristics of cicadas, not behavior. Choice B is incorrect as it describes the behavior of female cicadas, not males. Choice D is incorrect as it pertains to the behavior of female cicadas after mating, not males.
Based on the author's support and evidence, which of the following is a valid evaluation of the paragraph?
- A. It is an entertaining piece based on personal opinion.
- B. It is part of a historical account of the Great Emu War in Australia.
- C. It is a detailed analysis of military strategies during the Great Emu War.
- D. It is a scientific report on the impact of emus on the Australian ecosystem.
Correct Answer: B
Rationale: The paragraph provides a historical account of the Great Emu War in Australia, outlining the events, dates, and outcomes of the conflict between the Australian government and the emu population. It does not focus on personal opinion, military strategies, or the scientific impact of emus, making choice B the most accurate evaluation. Choices A, C, and D are incorrect as they do not align with the content of the paragraph.
Why was Lamarr's invention not of interest to the US?
- A. Hollywood was known to have spies
- B. The navy preferred to use the work of military engineers
- C. The military was too preoccupied to consider new inventions
- D. They suspected her patent was invalid
Correct Answer: B
Rationale: The correct answer is B. The US Navy preferred to utilize technology developed by military engineers rather than consider Lamarr's invention. Choice A is incorrect because Hollywood containing spies is not relevant to why the US was not interested in Lamarr's invention. Choice C is incorrect as there is no mention of the military being too preoccupied to consider new inventions in the provided context. Choice D is incorrect as there is no indication that the US suspected Lamarr's patent to be invalid; rather, the focus was on the navy's preference for technology developed by military engineers.