The great inventor Thomas Edison received more than one thousand patents during his career and made a large contribution to how we live today. For example, in 1877, after discovering a way to record sound, Edison introduced the phonograph. In 1893 he invented the first motion-picture camera. Eight years before inventing the phonograph, Edison received his first patent for a vote recorder, which was intended to help record legislative votes quickly. The Innovation he is most known for is the electric light bulb. He filed a patent for his light bulb in 1879. Though others contributed to the invention of the light bulb, Edison's work made this invention a long-lasting, practical household item.
Which technology mentioned in the passage was the first one invented by Edison?
- A. vote recorder
- B. motion-picture camera
- C. electric light bulb
- D. phonograph
Correct Answer & Rationale
Correct Answer: A
The vote recorder was the first technology invented by Edison, designed to streamline the voting process. This innovation predates his more famous inventions. The motion-picture camera (B) and electric light bulb (C) came later, showcasing Edison's evolution as an inventor. The phonograph (D), although significant in audio technology, was also developed after the vote recorder. Understanding the chronological order of these inventions highlights Edison's early contributions to technology and their impact on society.
The vote recorder was the first technology invented by Edison, designed to streamline the voting process. This innovation predates his more famous inventions. The motion-picture camera (B) and electric light bulb (C) came later, showcasing Edison's evolution as an inventor. The phonograph (D), although significant in audio technology, was also developed after the vote recorder. Understanding the chronological order of these inventions highlights Edison's early contributions to technology and their impact on society.
Other Related Questions
Based on the excerpts, which speaker would agree with each statement below? Drag each statement into the box labeled with that speaker's name. If neither would agree with a statement, drag it to the box labeled "Neither."
- A. Congress should spend money public education.
- B. Schools should meet federal education guidelines.
- C. Parents should hold public schools accountable.
- D. Local districts should set school guidelines.
Correct Answer & Rationale
Correct Answer:
Speaker A likely supports the idea that Congress should spend money on public education, as this aligns with a belief in federal investment in education for equitable access. Speaker B would agree that schools should meet federal education guidelines, as this emphasizes the importance of uniform standards for educational quality and accountability. Speaker C advocates for parental accountability in public schools, reflecting the belief that parents play a vital role in monitoring and improving educational outcomes. Speaker D likely supports the idea that local districts should set school guidelines, as this allows for tailored approaches that reflect community needs and values. If neither speaker aligns with a statement, it belongs in the "Neither" category.
Speaker A likely supports the idea that Congress should spend money on public education, as this aligns with a belief in federal investment in education for equitable access. Speaker B would agree that schools should meet federal education guidelines, as this emphasizes the importance of uniform standards for educational quality and accountability. Speaker C advocates for parental accountability in public schools, reflecting the belief that parents play a vital role in monitoring and improving educational outcomes. Speaker D likely supports the idea that local districts should set school guidelines, as this allows for tailored approaches that reflect community needs and values. If neither speaker aligns with a statement, it belongs in the "Neither" category.
Which statement is correct about the change in racial and ethnic populations between 2000 and 2010?
- A. The Black or African American population had the greatest percentage of growth.
- B. The Native Hawaiian and other Pacific Islander population grew by a greater proportion than the Asian population.
- C. The White population experienced the slowest growth of all groups.
- D. The American Indian and Alaska Native population experienced almost no change.
Correct Answer & Rationale
Correct Answer: B
Option B accurately reflects demographic trends, as the Native Hawaiian and other Pacific Islander population indeed saw a higher percentage increase compared to the Asian population during this period. Option A is incorrect; while the Black or African American population grew, it was not the greatest percentage increase among all racial groups. Option C misrepresents the data; although the White population's growth was slower compared to previous decades, it was not the slowest overall. Option D is misleading as well; the American Indian and Alaska Native population did experience some growth, albeit modest, rather than remaining unchanged.
Option B accurately reflects demographic trends, as the Native Hawaiian and other Pacific Islander population indeed saw a higher percentage increase compared to the Asian population during this period. Option A is incorrect; while the Black or African American population grew, it was not the greatest percentage increase among all racial groups. Option C misrepresents the data; although the White population's growth was slower compared to previous decades, it was not the slowest overall. Option D is misleading as well; the American Indian and Alaska Native population did experience some growth, albeit modest, rather than remaining unchanged.
Based on the timeline and the map, what was one way African Americans dealt with Jim Crow laws?
- A. by taking service jobs in southern cities
- B. by seeking factory jobs in urban areas of the North
- C. by becoming tenant farmers in other parts of the South
- D. by gaining technical skills in northern schools
Correct Answer & Rationale
Correct Answer: B
African Americans responded to Jim Crow laws by seeking factory jobs in urban areas of the North, as this migration offered better economic opportunities and a chance to escape oppressive conditions in the South. Option A, taking service jobs in southern cities, often perpetuated the same discriminatory practices found under Jim Crow. Option C, becoming tenant farmers in other parts of the South, did not provide significant relief from the systemic racism and economic hardship prevalent in that region. Option D, gaining technical skills in northern schools, while beneficial, was not a widespread or immediate solution compared to the mass migration to northern factories.
African Americans responded to Jim Crow laws by seeking factory jobs in urban areas of the North, as this migration offered better economic opportunities and a chance to escape oppressive conditions in the South. Option A, taking service jobs in southern cities, often perpetuated the same discriminatory practices found under Jim Crow. Option C, becoming tenant farmers in other parts of the South, did not provide significant relief from the systemic racism and economic hardship prevalent in that region. Option D, gaining technical skills in northern schools, while beneficial, was not a widespread or immediate solution compared to the mass migration to northern factories.
Which statement best explains the situation described in the paragraphs?
- A. Crude oil prices in 2014 encouraged U.S. families to buy less gasoline in 2015.
- B. Crude oil production levels have caused U.S. gasoline prices to fall.
- C. Greater crude oil reserves have caused the U.S. government to reduce gasoline prices.
- D. Lower crude oil production will cause U.S. gasoline prices to return to 2014 levels by 2016.
Correct Answer & Rationale
Correct Answer: B
Option B accurately reflects the relationship between crude oil production levels and gasoline prices. Increased production typically leads to lower prices, as supply outstrips demand. Option A incorrectly suggests a direct correlation between crude oil prices in 2014 and gasoline purchases in 2015, neglecting the influence of production levels. Option C misrepresents the role of reserves; while greater reserves can impact prices, it is production levels that directly affect market prices. Option D speculates on future price increases due to lower production, which is uncertain and not directly supported by the information provided.
Option B accurately reflects the relationship between crude oil production levels and gasoline prices. Increased production typically leads to lower prices, as supply outstrips demand. Option A incorrectly suggests a direct correlation between crude oil prices in 2014 and gasoline purchases in 2015, neglecting the influence of production levels. Option C misrepresents the role of reserves; while greater reserves can impact prices, it is production levels that directly affect market prices. Option D speculates on future price increases due to lower production, which is uncertain and not directly supported by the information provided.